- routing-wg - mailman.ripe.net

The Cidr Report
by cidr-report＠potaroo.net 01 Oct '04

01 Oct '04

This report has been generated at Fri Oct 1 21:49:32 2004 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 24-09-04 144324 99990 25-09-04 145885 99946 26-09-04 145618 100026 27-09-04 145573 100092 28-09-04 145705 100057 29-09-04 145910 100061 30-09-04 145918 100047 01-10-04 145932 100217 AS Summary 18075 Number of ASes in routing system 7338 Number of ASes announcing only one prefix 1385 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 86715392 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 01Oct04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 146170 100217 45953 31.4% All ASes AS18566 743 7 736 99.1% CVAD Covad Communications AS4134 813 177 636 78.2% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 795 221 574 72.2% TWTC Time Warner Telecom AS7018 1385 964 421 30.4% ATTW AT&T WorldNet Services AS22773 402 21 381 94.8% CXA Cox Communications Inc. AS6197 774 411 363 46.9% BNS-14 BellSouth Network Solutions, Inc AS6467 391 30 361 92.3% ACSI e.spire Communications, Inc. AS27364 394 36 358 90.9% ARMC Armstrong Cable Services AS701 1253 905 348 27.8% UU UUNET Technologies, Inc. AS22909 381 42 339 89.0% CMCS Comcast Cable Communications, Inc. AS1239 952 636 316 33.2% SPRN Sprint AS17676 368 56 312 84.8% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 334 33 301 90.1% CNCNET-CN China Netcom Corp. AS6478 370 74 296 80.0% ATTW AT&T WorldNet Services AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS21502 268 3 265 98.9% ASN-NUMERICABLE NUMERICABLE is a cabled network in France, AS4766 529 266 263 49.7% KIXS-AS-KR Korea Telecom AS14654 260 6 254 97.7% WAYPOR-3 Wayport AS6140 368 115 253 68.8% IMPSA ImpSat AS9443 358 109 249 69.6% INTERNETPRIMUS-AS-AP Primus Telecommunications AS7843 489 251 238 48.7% ADELPH-13 Adelphia Corp. AS2386 840 611 229 27.3% ADCS-1 AT&T Data Communications Services AS1221 812 584 228 28.1% ASN-TELSTRA Telstra Pty Ltd AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS9583 530 308 222 41.9% SIFY-AS-IN Sify Limited AS6198 427 211 216 50.6% BNS-14 BellSouth Network Solutions, Inc AS15557 339 126 213 62.8% LDCOMNET LDCOM NETWORKS AS13083 217 8 209 96.3% Mannesmann Datenverarbeitung Autonomes System AS721 722 516 206 28.5% DNIC DoD Network Information Center AS6327 229 29 200 87.3% SHAWC-2 Shaw Communications Inc. Total 16368 6871 9497 58.0% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS3408 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.83.96.0/19 AS26956 NETFR NetFree Communications 64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services 66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc. 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 111.0.0.0/24 AS7563 KII-AS Korea Internet Infrastructure 132.0.0.0/10 AS721 DNIC DoD Network Information Center 137.0.0.0/13 AS721 DNIC DoD Network Information Center 138.136.0.0/13 AS721 DNIC DoD Network Information Center 158.0.0.0/13 AS721 DNIC DoD Network Information Center 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada 192.80.64.0/19 AS1 LVLT Level 3 Communications, Inc. 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.107.144.0/22 AS1 LVLT Level 3 Communications, Inc. 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.138.208.0/20 AS1 LVLT Level 3 Communications, Inc. 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.190.16.0/21 AS1 LVLT Level 3 Communications, Inc. 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.81.96.0/19 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.81.109.0/24 AS7657 TIG-US-PAS-AP The Internet Group Limited 202.81.121.0/24 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 204.196.0.0/14 AS1 LVLT Level 3 Communications, Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.143.192.0/18 AS3561 CWU Cable & Wireless USA 209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/24 AS11937 TRXI TRX Inc. 216.145.132.0/24 AS11937 TRXI TRX Inc. 216.145.134.0/24 AS11937 TRXI TRX Inc. 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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Routing wg draft minutes - RIPE 49
by Joao Damas 28 Sep '04

28 Sep '04

Hello, I am hereby posting a revised version of the *draft* minutes for the routing wg meeting at RIPE 49 last week. Many thanks go to the scribe, Henk Uijterwaal, of the RIPE NCC for a good and quick job. Comments are welcome, Joao Damas/(co)Chair routing-wg ISC Routing WG (Session 1) ====================== 1. Introduction/Joao Damas (16:00-16:03). ------------ Joao opens the meeting and deals with the administrative stuff. Henk Uijterwaal is appointed as scribe, the minutes from RIPE48 are approved, the agenda is approved. The group has no outstanding actions. Joao shows a slide with the dates of the upcoming IRR courses by the RIPE NCC. These dates will be published on the web shortly. 2. Securing a core network - discussion/Michael Behringer. (16:03-16:39) ------------------------------------ Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- security-discussion.pdf Christian Panigl briefly summarised part 2 of Michael Behringer's talk from morning EOF session. In the morning, Michael Behringer presented some ideas to secure the core network, keeping operability in mind: - Transit ACL's - Use RFC1918 address space and no export (users cannot see the core and thus not attack it). - Use of a non IP-Control plane The chair then opened the floor for lively discussion: * Daniel Karrenberg: if you are protecting the core, make it transparent, the end user then sees it as 1 IP hop. The user should never see RFC1918 space. Also be consistent, that will save a lot of work. * Joao Damas: Wild idea: use a v6 block for your IX. * Randy Bush: What end user want is good service, does not want to run traceroute. End user needs to debug both paths. Opaque blob is not going to let anybody debug it. * Michael Behringer: This is an old discussion. Traceroute -g and source route were considered bad too, LG's solved the problem. While he agrees with Randy Bush' points, why not invent other tools? * Randy Bush: does not see benefit in using RFC1918 space to make core invisible. This hides the fact that it is an IP network, it is going to get you in trouble sooner or later. IP network should be open. * Daniel Karrenberg and Iljitsch van Beijnum agree with Randy Bush. * Pedro Marques states that you cannot prevent people from accessing your core routers without making things invisible. * Michael Behringer wants to see the discussion on an abstract level. * Pedro Marques: if you have daily DDoS attacks, filtering for network might be a good idea, not a choice, even if it breaks other things. Host-by-host protection does not work. * van Beijnum: hiding the core and making the core inaccessible aren't the same thing. The latter can be good. If you hide the core, debugging will be the same as debugging ethernet segments. Not funny. * Randy Bush DDoS problem of distributed source and target. Needs to be solved near the edge and source of DDoS. Refers to work by Bellovin et al on push-back * David Reader: try traceroute to 213.249.249.129. Lots of 1918 space, his customer cannot see the site, operator of 10/8 can. The core doesn't see the problem, their neighbours do. * Michael Behringer asked what if you get proper addresses back. Randy: now you know who to contact and what's wrong. * Pedro Marques: one can set-up things such that traceroute works, but ping doesn't. Michael concluded with: there are different views, no agreement on pros and cons. He plans to write this up and give the document away. People can then decide for themselves what to do. 3. IRR toolset handover/Shane Kerr (16:39-16:46) -------------------- Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- irrtoolset-handover.pdf Shane explained that the RIPE NCC took over maintenance of the RAToolset from ISI in 2001. The current release contains fixes to all issues raised at RIPE49 and compiles under gcc 3.x.x. The maintenance of this toolset does not fit with the current software model at the RIPE NCC. The RIPE NCC has therefor agreed with ISC to move maintenance to them. The RIPE NCC has handed over the code and all documentation to ISC. The mailing list will be moved soon. Question from the floor: Randy Bush asks what licensing model will be used by ISC. Joao Damas responds that the current license is the BSD license and that will not be changed. 4. BGP Wedgies/Tim Griffin (16:39-17:07) ----------- Slides on the web at www.cambridge.intel-research.net/~tgriffin Tim introduced the concept of a BGP wedgie. A 3/4-wedgie is a situation where local routing policies make sense locally but interactions allow for multiple stable routes. A full wedgie is a situation where no set of operators can find out why a set of policies result in an unexpected route. Some examples were shown. Operators should be aware of this. An IETF draft (in the GROW-WG) is available. Comments: Geoff Huston: This would be easier if "depref me" was a transit property. Should it be? Tim: if we want this to work: yes. Pedro Marques: one way to fix it is to get eBGP to advertise best route and best route that does not come from peer I'm talking to. (2nd best route). This is in an old RFC. Juniper can support this. Tim: this makes it easier, but does not solve general case. Bill Norton: what tools do you have to figure out the current situation, what tools would be useful? Tim: needs common analysis by multiple AS, not a trivial thing to set up. Daniel Karrenberg: can this be avoided with pre-pending? Tim: no, folks prefer customers, it will not work. 5. Measurements on intra domain routing instability/Zhang Shu (17:07-17:24) ------------------------------------------------ Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- instability-measurements.pdf Zhang showed statistics on intra domain routing changes in the WIDE network. Oscillations are often caused by: Congestion Link/IF failure Misconfiguration S/W bugs He then presented the RTANALY tool, a system to detect and visualise IGP changes. Release early October: http://rtanaly.koganei.wide.ad.jp/rtanaly An example was shown. Question from the floor: How do you get the data? Zhang: Record them with tcpdump. Routing WG/Session 2 ==================== 6. BGP network design/Pedro Marques (11:00-11:50) ------------------ Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- bgp-design.pdf This presentation will focused on a set of frequently asked questions that network operators have regarding the logical design of BGP networks. These include topics such as route reflector placement on a network and BGP configuration trade-offs. More a set of topics to generate discussion based on discussion with potential customers. A. How much hierarchy Showed an example of a wrong design aimed at keeping traffic local. IBGP would have done the same. BGP for internal traffic is generally a bad idea, it was not designed for it. B. Where to place route reflectors? Goal: reduce routing information. Non-goals: configuration management, scaling #tcp sessions A lot of people use Route Reflectors as a configuration. management tool. Wrong tool for the job. Side effects of path selection are usually not understood. Should buy a provisioning system. Recommendations: - Keep it simple. Lowest cost solution that solves the problem - Avoid loosing information in the core - Avoid centralisation Cold potato: MED and what are the consequences. The speaker then ran out of time and briefly went through a number of slides: C. Can BGP advertise more than 1 path? Yes, you can. Showed config example in slides D. Unadvertised JunOS behaviour changes: 6.3 incoming interface check on eBGP session (drop packet from non peer) 7.0 TCP path MTU discovery no eBGP poison reverse to neighbour as Question from the floor; Rudiger Volk: objects against the statement that BGP can advertise more than 1 path. It doesn't. Prefix is the key. Pedro: 2547 augments the key to be a route discriminator plus prefix. So effectively it does for a number of applications. A discussion follows, no conclusion is reached and the discussion is taken off-line. Randy Bush showed a case where mixing routers from two different vendors led to huge numbers of message and slow convergence, introducing a min.router advert showed slower convergence, less messages though, not seen on data plane 7. Happy packets/Randy Bush (11:50-12:04) ------------- Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- happy.pdf Randy noticed that there have been numerous publications about the control-plane (routing) instability. However, what matters is the quality and stability of the data plane: what counts is if the data reaches its destination. A huge number of BGP updates is not a problem as long as the routers can process them without falling over. He did an experiment with a BGP beacon and sites all over the world sending data to it. One plot showed the effect of an link cut while keeping an alternative path up. Packets continued to arrive from half the sources. The other half experienced a 30 second drop, even though BGP updates continued to float around in the system much longer. More examples were shown, bottom line was there is no correlation between BGP activity and data not arriving. On the IP level, some correlation can (arguably) be seen. 8. RIS status and plans/Matthew Williams (12:04-12:23) -------------------- Slides on the web at: http://www.ripe.net/ripe/meetings/ripe-49/presentations/ripe49-routing- ris.pdf Matthew gave an update of the RIS project at the RIPE NCC. Highlights are * The internal reorganisation announced at RIPE48 has been successfully completed. * A route collector is about to be installed in Moscow. RRC08 has been moved from MAE-WEST to the PAIX. * myASn v1.0 has been released. myASn is an alarm system for BGP available at http://www.ris.ripe.net/myasn.html. * The debogonising effort has been continued. For the new RIPE NCC block 85/8, it showed that initially 80% of the sites filtered the block, this was reduced to 17% after a few days. * Ongoing efforts: - IPv6 support. Some tools do support IPv6, others don't as the RIPE NCC ran out of time. New ETA is late November. Prototypes for unsupported tools are available at: http://www.ris.ripe.net/cgi-bin/ipv6/prefixquery.cgi - Looking at requirements for myASn v1.1 and 2.0. - Future IDR work - Secure routing - Collaborate with researchers - Your suggestion 9. Detecting anomalies/Olaf Maennel (12:23-12:37) ------------------- Slides not yet on the web. Olaf presented research aimed at finding the offending AS when an anomaly in BGP is detected. He uses 3 views: time, location and prefix. The method then detects the AS that is causing the problem (in about 93%) of the cases. The algorithm has been validated using simulations, RIS/Routeviews data (1100 feeds), formal methods. Olaf has also checked that the anomalies he detected are related to events seen in syslog files from real routes. Limitations of the method are the size of the candidate set. It is also possible that the offending AS is outside the set of processed AS's. Further work includes developing a Topology aware library to identify clusters and adding this algorithm to BGP alarm systems like myASn. Collaborators are Gert Doering and the RIPE NCC. 10. AOB? --- No other business.

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Weekly Routing Table Report
by Routing Table Analysis 24 Sep '04

24 Sep '04

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 25 Sep, 2004 Analysis Summary ---------------- BGP routing table entries examined: 147727 Prefixes after maximum aggregation: 87611 Unique aggregates announced to Internet: 70315 Total ASes present in the Internet Routing Table: 18109 Origin-only ASes present in the Internet Routing Table: 15745 Origin ASes announcing only one prefix: 7345 Transit ASes present in the Internet Routing Table: 2364 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 22 Prefixes from unregistered ASNs in the Routing Table: 12 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 17 Number of addresses announced to Internet: 1340351908 Equivalent to 79 /8s, 228 /16s and 37 /24s Percentage of available address space announced: 36.2 Percentage of allocated address space announced: 58.4 Percentage of available address space allocated: 61.9 Total number of prefixes smaller than registry allocations: 67875 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 28428 Total APNIC prefixes after maximum aggregation: 14225 Prefixes being announced from the APNIC address blocks: 26595 Unique aggregates announced from the APNIC address blocks: 14165 APNIC Region origin ASes present in the Internet Routing Table: 2131 APNIC Region origin ASes announcing only one prefix: 635 APNIC Region transit ASes present in the Internet Routing Table: 325 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 163812992 Equivalent to 9 /8s, 195 /16s and 150 /24s Percentage of available APNIC address space announced: 74.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 23552-24575 APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 84217 Total ARIN prefixes after maximum aggregation: 51327 Prefixes being announced from the ARIN address blocks: 64419 Unique aggregates announced from the ARIN address blocks: 22785 ARIN Region origin ASes present in the Internet Routing Table: 9575 ARIN Region origin ASes announcing only one prefix: 3429 ARIN Region transit ASes present in the Internet Routing Table: 916 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 232724224 Equivalent to 13 /8s, 223 /16s and 23 /24s Percentage of available ARIN address space announced: 69.4 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647,29695-30719, 31744-33791 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 27363 Total RIPE prefixes after maximum aggregation: 19057 Prefixes being announced from the RIPE address blocks: 24203 Unique aggregates announced from the RIPE address blocks: 15867 RIPE Region origin ASes present in the Internet Routing Table: 5845 RIPE Region origin ASes announcing only one prefix: 3144 RIPE Region transit ASes present in the Internet Routing Table: 1002 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 171842624 Equivalent to 10 /8s, 62 /16s and 28 /24s Percentage of available RIPE address space announced: 60.3 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-34815 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 6466 Total LACNIC prefixes after maximum aggregation: 2311 Prefixes being announced from the LACNIC address blocks: 6299 Unique aggregates announced from the LACNIC address blocks: 3623 LACNIC Region origin ASes present in the Internet Routing Table: 393 LACNIC Region origin ASes announcing only one prefix: 117 LACNIC Region transit ASes present in the Internet Routing Table: 79 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 16081152 Equivalent to 0 /8s, 245 /16s and 97 /24s Percentage of available LACNIC address space announced: 47.9 LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1245 Total AfriNIC prefixes after maximum aggregation: 688 Prefixes being announced from the AfriNIC address blocks: 838 Unique aggregates announced from the AfriNIC address blocks: 675 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 2063360 Equivalent to 0 /8s, 31 /16s and 124 /24s Percentage of available AfriNIC address space announced: 12.3 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 838 4385 158 Data Communications Bureau 1221 808 1183 581 Telstra Pty Ltd 4766 544 3408 266 Korea Internet Exchange for " 9583 533 41 102 Satyam Infoway Ltd., 4755 366 133 48 Videsh Sanchar Nigam Ltd. Aut 17676 364 5436 52 XTAGE CORPORATION 9443 355 70 81 Primus Telecommunications 2907 351 1840 326 SINET Japan 9929 344 161 33 China Netcom Corp. 17557 312 23 154 Pakistan Telecom 703 311 342 240 UUNET 2764 284 274 233 connect.com.au pty ltd 7474 273 269 201 Optus Communications Pty Ltd 9942 243 73 130 COMindico Australia 4802 234 28 143 Wantree Development 9800 229 372 66 CHINA UNICOM 9498 223 49 49 BHARTI BT INTERNET LTD. 7563 209 48 163 Korea Internet Infrastructure 4837 202 2264 106 chinanet IDC center beijing n 10036 202 18 185 C&M Communication Co. Ltd. ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1408 6752 979 AT&T WorldNet Services 701 1267 8425 914 UUNET Technologies, Inc. 1239 947 2883 629 Sprint 2386 835 529 598 AT&T Data Communications Serv 4323 789 633 215 Time Warner Telecom 18566 740 208 6 Covad Communications 6197 725 365 351 BellSouth Network Solutions, 721 719 21020 296 DLA Systems Automation Center 209 626 3465 496 Qwest 3356 588 10923 448 Level 3 Communications, LLC 20115 585 424 298 Charter Communications 3561 530 2486 369 Cable & Wireless USA 852 511 1141 397 Telus Advanced Communications 7843 491 681 98 Adelphia Corp. 7132 434 8141 376 SBC Internet Services 705 433 163 274 UUNET Technologies, Inc. 6198 430 396 199 BellSouth Network Solutions, 22773 399 960 18 Cox Communications, Inc. Atla 5668 396 87 18 Century Telephone 6467 394 149 30 E.Spire Communications, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 643 2032 531 UUNET - Commercial IP service 3320 299 2470 236 Deutsche Telekom AG 8220 280 460 266 COLT Internet - International 3301 279 1100 269 TeliaNet Sweden 21502 268 40 3 NUMERICABLE is a cabled netwo 680 251 2025 239 DFN-IP service G-WiN 3246 217 475 214 Song Networks 13083 217 51 8 Mannesmann Datenverarbeitung 1257 208 744 178 SWIPnet Swedish IP Network 8708 205 113 183 Romania Data Systems S.A. 5515 198 842 144 Sonera Solution Autonomous Sy 3215 184 876 77 France Telecom Transpac 786 177 1794 177 The JANET IP Service 719 157 288 102 LANLINK autonomous system 6746 151 29 128 Dynamic Network Technologies, 25186 149 154 106 France Telecom Transpac's Tra 3303 148 610 130 Swisscom Ltd 5400 148 206 120 BT Ignite European Backbone 3269 145 1195 66 TELECOM ITALIA 8866 145 17 23 Bulgarian Telecommunication C LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 366 138 67 ImpSat 8151 301 439 133 UniNet S.A. de C.V. 11172 289 100 54 Servicios Alestra S.A de C.V 16814 212 13 7 NSS, S.A. 6147 191 86 19 Telefonica Del Peru 11664 149 13 33 Keytech SA 6505 137 90 94 Global One Communicaoes Ltda 6503 127 164 86 AVANTEL, S.A. 7303 127 57 21 Telecom Argentina Stet-France 11992 90 9 31 Integrated Systems 14420 86 7 37 ANDINATEL S.A. 6535 85 7 19 Chilesat Servicios Empresari 10620 85 10 4 TVCABLE BOGOTA 11311 83 8 22 Sinectis S.A. 10481 81 32 7 Prima S.A. 11556 81 41 3 Cable-Wireless Panama 5639 77 8 8 Telecommunications Services o 15311 76 21 36 Telefonica Empresas 27716 74 9 12 Eveloz 14117 71 6 4 Telefonica del Sur S.A. AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 251 631 218 The Internet Solution 5536 114 16 4 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 92 276 81 The Internetworking Company o 20928 59 16 1 Noor Advanced Technologies AS 14988 45 16 1 Botswana Telecommunications C 24835 34 34 7 RAYA Telecom - Egypt 6713 31 42 10 Itissalat Al-MAGHRIB 9129 30 3 4 UUNET Kenya 5713 26 125 24 Telkom SA Ltd 8524 25 1 4 AUCEGYPT Autonomous System 16637 24 10 19 Johnnic e-Ventures 10798 18 1 12 Standard Bank of South Africa 12258 18 3 12 Vodacom Internet Company 12455 17 4 2 Jambonet Autonomous system 21491 16 1 3 UTL On-line is RF broadband I 8346 15 7 14 SONATEL-AS Autonomous System 15706 15 4 2 Sudatel Internet Exchange Aut 21280 14 2 3 Swift Global Kenya Ltd.Is an 15808 13 1 2 Communication Solutions Ltd i Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 740 734 Covad Communications 4134 838 680 Data Communications Bureau 4323 789 574 Time Warner Telecom 9583 533 431 Satyam Infoway Ltd., 721 719 423 DLA Systems Automation Center 7843 491 393 Adelphia Corp. 22773 399 381 Cox Communications, Inc. Atla 5668 396 378 Century Telephone 27364 394 375 Armstrong Cable Services 6197 725 374 BellSouth Network Solutions, 6467 394 364 E.Spire Communications, Inc. 701 1267 353 UUNET Technologies, Inc. 22909 376 338 Comcast Cable Corporation 1239 947 318 Sprint 4755 366 318 Videsh Sanchar Nigam Ltd. Aut 17676 364 312 XTAGE CORPORATION 9929 344 311 China Netcom Corp. 6140 366 299 ImpSat 6478 364 293 AT&T Worldnet Services 4355 389 290 EarthLink, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS 23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS 23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS 64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE 65217 PRIVATE 192.102.236.0/24 217 University of Minnes 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 22750 UNALLOCATED 196.44.64.0/19 3741 The Internet Solutio 22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.224.0/20 3741 The Internet Solutio 22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 111.0.0.0/24 7563 Korea Internet Infrastructure 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 721 DLA Systems Automation Center 192.172.11.0/24 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:6 /11:15 /12:63 /13:134 /14:307 /15:540 /16:8059 /17:2227 /18:3862 /19:9809 /20:10347 /21:7785 /22:10746 /23:12388 /24:80598 /25:241 /26:209 /27:109 /28:58 /29:43 /30:107 /31:0 /32:52 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 725 740 Covad Communications 2386 602 835 AT&T Data Communications Serv 6197 576 725 BellSouth Network Solutions, 7018 552 1408 AT&T WorldNet Services 702 394 643 UUNET - Commercial IP service 27364 378 394 Armstrong Cable Services 1239 375 947 Sprint 9583 371 533 Satyam Infoway Ltd., 4766 363 544 Korea Internet Exchange for " 701 356 1267 UUNET Technologies, Inc. 5668 346 396 Century Telephone 6198 316 430 BellSouth Network Solutions, 20115 298 585 Charter Communications 6467 291 394 E.Spire Communications, Inc. 9929 275 344 China Netcom Corp. 6517 265 292 Yipes Communications, Inc. 13609 265 308 Choice One Communications Inc 21502 265 268 NUMERICABLE is a cabled netwo 6347 246 332 SAVVIS Communications Corpora 3320 245 299 Deutsche Telekom AG Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:3 12:1395 13:1 15:5 16:2 17:3 20:6 24:724 32:66 33:2 38:78 40:54 44:4 47:2 52:3 55:1 56:3 57:17 60:6 61:510 62:505 63:1840 64:2403 65:2057 66:2497 67:396 68:549 69:714 70:73 80:523 81:550 82:301 83:158 84:25 111:1 128:121 129:171 130:87 131:189 132:27 134:187 135:17 136:180 137:55 138:180 139:35 140:183 141:107 142:119 143:67 144:160 145:42 146:293 147:94 148:384 149:110 150:87 151:65 152:152 153:68 154:2 155:127 156:59 157:71 158:143 159:163 160:56 161:71 162:373 163:81 164:214 165:161 166:118 167:223 168:344 169:120 170:270 171:9 192:5579 193:2906 194:2119 195:1484 196:597 198:3675 199:3274 200:3833 201:20 202:4852 203:5690 204:3244 205:2092 206:2324 207:2576 208:2141 209:3028 210:1487 211:622 212:1092 213:1198 214:134 215:31 216:3707 217:1012 218:176 219:101 220:257 221:37 222:44 End of report

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The Cidr Report
by cidr-report＠potaroo.net 24 Sep '04

24 Sep '04

This report has been generated at Fri Sep 24 21:44:25 2004 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 17-09-04 143628 98841 18-09-04 143795 98791 19-09-04 143753 98757 20-09-04 143810 98790 21-09-04 143714 99006 22-09-04 144230 99037 23-09-04 144280 99059 24-09-04 144324 99983 AS Summary 18046 Number of ASes in routing system 7331 Number of ASes announcing only one prefix 1386 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 86681856 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 24Sep04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 145918 100017 45901 31.5% All ASes AS18566 740 7 733 99.1% CVAD Covad Communications AS4134 785 176 609 77.6% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 788 217 571 72.5% TWTC Time Warner Telecom AS7018 1386 961 425 30.7% ATTW AT&T WorldNet Services AS7843 491 98 393 80.0% ADELPH-13 Adelphia Corp. AS22773 400 21 379 94.8% CXA Cox Communications Inc. AS6467 393 30 363 92.4% ACSI e.spire Communications, Inc. AS27364 394 36 358 90.9% ARMC Armstrong Cable Services AS701 1246 901 345 27.7% UU UUNET Technologies, Inc. AS22909 376 46 330 87.8% CMCS Comcast Cable Communications, Inc. AS6197 722 404 318 44.0% BNS-14 BellSouth Network Solutions, Inc AS1239 957 640 317 33.1% SPRN Sprint AS17676 362 56 306 84.5% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 334 33 301 90.1% CNCNET-CN China Netcom Corp. AS6478 364 71 293 80.5% ATTW AT&T WorldNet Services AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS21502 268 3 265 98.9% ASN-NUMERICABLE NUMERICABLE is a cabled network in France, AS4766 529 266 263 49.7% KIXS-AS-KR Korea Telecom AS6347 332 79 253 76.2% SAVV SAVVIS Communications Corporation AS14654 259 6 253 97.7% WAYPOR-3 Wayport AS6140 364 114 250 68.7% IMPSA ImpSat AS9443 359 110 249 69.4% INTERNETPRIMUS-AS-AP Primus Telecommunications AS11172 286 53 233 81.5% Alestra AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS2386 834 607 227 27.2% ADCS-1 AT&T Data Communications Services AS1221 811 584 227 28.0% ASN-TELSTRA Telstra Pty Ltd AS15557 371 144 227 61.2% LDCOMNET LDCOM NETWORKS AS9583 534 315 219 41.0% SIFY-AS-IN Sify Limited AS6198 428 210 218 50.9% BNS-14 BellSouth Network Solutions, Inc AS721 719 512 207 28.8% DNIC DoD Network Information Center Total 16457 6815 9642 58.6% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS3408 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.83.96.0/19 AS26956 NETFR NetFree Communications 64.127.0.0/18 AS7018 ATTW AT&T WorldNet Services 65.23.160.0/19 AS32809 DRN-3 Dickey Rural Networks 66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc. 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 111.0.0.0/24 AS7563 KII-AS Korea Internet Infrastructure 132.0.0.0/10 AS721 DNIC DoD Network Information Center 137.0.0.0/13 AS721 DNIC DoD Network Information Center 138.136.0.0/13 AS721 DNIC DoD Network Information Center 158.0.0.0/13 AS721 DNIC DoD Network Information Center 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada 192.80.64.0/19 AS1 LVLT Level 3 Communications, Inc. 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.107.144.0/22 AS1 LVLT Level 3 Communications, Inc. 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.138.208.0/20 AS1 LVLT Level 3 Communications, Inc. 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.190.16.0/21 AS1 LVLT Level 3 Communications, Inc. 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.81.96.0/19 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.81.109.0/24 AS7657 TIG-US-PAS-AP The Internet Group Limited 202.81.121.0/24 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 204.196.0.0/14 AS1 LVLT Level 3 Communications, Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.143.192.0/18 AS3561 CWU Cable & Wireless USA 209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/24 AS11937 TRXI TRX Inc. 216.145.132.0/24 AS11937 TRXI TRX Inc. 216.145.134.0/24 AS11937 TRXI TRX Inc. 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

1 0

Weekly Routing Table Report
by Routing Table Analysis 17 Sep '04

17 Sep '04

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 18 Sep, 2004 Analysis Summary ---------------- BGP routing table entries examined: 146980 Prefixes after maximum aggregation: 87372 Unique aggregates announced to Internet: 70140 Total ASes present in the Internet Routing Table: 18068 Origin-only ASes present in the Internet Routing Table: 15701 Origin ASes announcing only one prefix: 7323 Transit ASes present in the Internet Routing Table: 2367 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 4.6 Max AS path length visible: 22 Prefixes from unregistered ASNs in the Routing Table: 57 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 17 Number of addresses announced to Internet: 1338258084 Equivalent to 79 /8s, 196 /16s and 50 /24s Percentage of available address space announced: 36.1 Percentage of allocated address space announced: 58.3 Percentage of available address space allocated: 61.9 Total number of prefixes smaller than registry allocations: 67376 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 28143 Total APNIC prefixes after maximum aggregation: 14195 Prefixes being announced from the APNIC address blocks: 26407 Unique aggregates announced from the APNIC address blocks: 14209 APNIC Region origin ASes present in the Internet Routing Table: 2143 APNIC Region origin ASes announcing only one prefix: 638 APNIC Region transit ASes present in the Internet Routing Table: 324 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 161969792 Equivalent to 9 /8s, 167 /16s and 118 /24s Percentage of available APNIC address space announced: 73.9 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 23552-24575 APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 83808 Total ARIN prefixes after maximum aggregation: 51188 Prefixes being announced from the ARIN address blocks: 64163 Unique aggregates announced from the ARIN address blocks: 22757 ARIN Region origin ASes present in the Internet Routing Table: 9550 ARIN Region origin ASes announcing only one prefix: 3415 ARIN Region transit ASes present in the Internet Routing Table: 926 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 232603392 Equivalent to 13 /8s, 221 /16s and 63 /24s Percentage of available ARIN address space announced: 69.3 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647,29695-30719, 31744-33791 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 27264 Total RIPE prefixes after maximum aggregation: 19026 Prefixes being announced from the RIPE address blocks: 24104 Unique aggregates announced from the RIPE address blocks: 15851 RIPE Region origin ASes present in the Internet Routing Table: 5826 RIPE Region origin ASes announcing only one prefix: 3131 RIPE Region transit ASes present in the Internet Routing Table: 997 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 171318592 Equivalent to 10 /8s, 54 /16s and 29 /24s Percentage of available RIPE address space announced: 60.1 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-34815 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 6459 Total LACNIC prefixes after maximum aggregation: 2272 Prefixes being announced from the LACNIC address blocks: 6247 Unique aggregates announced from the LACNIC address blocks: 3521 LACNIC Region origin ASes present in the Internet Routing Table: 393 LACNIC Region origin ASes announcing only one prefix: 119 LACNIC Region transit ASes present in the Internet Routing Table: 77 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 16039680 Equivalent to 0 /8s, 244 /16s and 191 /24s Percentage of available LACNIC address space announced: 47.8 LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1252 Total AfriNIC prefixes after maximum aggregation: 688 Prefixes being announced from the AfriNIC address blocks: 830 Unique aggregates announced from the AfriNIC address blocks: 664 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 20 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 2060544 Equivalent to 0 /8s, 31 /16s and 113 /24s Percentage of available AfriNIC address space announced: 12.3 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 834 4193 156 Data Communications Bureau 1221 810 1184 583 Telstra Pty Ltd 4766 545 3408 266 Korea Internet Exchange for " 9583 531 41 103 Satyam Infoway Ltd., 4755 367 133 49 Videsh Sanchar Nigam Ltd. Aut 9443 355 70 81 Primus Telecommunications 2907 350 1840 324 SINET Japan 17676 350 5212 41 XTAGE CORPORATION 9929 347 161 33 China Netcom Corp. 17557 313 22 155 Pakistan Telecom 703 311 342 240 UUNET 2764 283 274 232 connect.com.au pty ltd 7474 271 269 200 Optus Communications Pty Ltd 9942 234 73 130 COMindico Australia 4802 232 28 142 Wantree Development 9800 229 372 66 CHINA UNICOM 9498 223 49 49 BHARTI BT INTERNET LTD. 4837 202 2264 106 chinanet IDC center beijing n 10036 202 18 185 C&M Communication Co. Ltd. 9304 189 160 26 Hutchison Telecom (HK) ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1411 6737 977 AT&T WorldNet Services 701 1267 8422 910 UUNET Technologies, Inc. 1239 944 2882 628 Sprint 2386 829 545 594 AT&T Data Communications Serv 4323 773 613 211 Time Warner Telecom 18566 739 208 6 Covad Communications 6197 720 362 350 BellSouth Network Solutions, 721 713 21011 295 DLA Systems Automation Center 209 620 3464 493 Qwest 3356 592 10923 452 Level 3 Communications, LLC 20115 578 422 291 Charter Communications 3561 518 2487 369 Cable & Wireless USA 852 509 1141 396 Telus Advanced Communications 7843 489 676 100 Adelphia Corp. 7132 434 8157 376 SBC Internet Services 6198 431 396 199 BellSouth Network Solutions, 705 429 163 271 UUNET Technologies, Inc. 6347 398 158 93 SAVVIS Communications Corpora 22773 397 960 18 Cox Communications, Inc. Atla 27364 395 36 19 Armstrong Cable Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 634 2031 526 UUNET - Commercial IP service 3320 300 2470 237 Deutsche Telekom AG 3301 282 1098 272 TeliaNet Sweden 8220 274 460 261 COLT Internet - International 21502 268 40 3 NUMERICABLE is a cabled netwo 680 251 2025 239 DFN-IP service G-WiN 3246 217 475 214 Song Networks 13083 217 51 8 Mannesmann Datenverarbeitung 1257 211 745 180 SWIPnet Swedish IP Network 8708 204 113 183 Romania Data Systems S.A. 5515 198 842 144 Sonera Solution Autonomous Sy 3215 184 876 77 France Telecom Transpac 786 176 1794 176 The JANET IP Service 719 157 288 102 LANLINK autonomous system 6746 155 29 132 Dynamic Network Technologies, 5400 154 209 124 BT Ignite European Backbone 25186 153 154 109 France Telecom Transpac's Tra 3303 148 610 130 Swisscom Ltd 3269 145 1195 66 TELECOM ITALIA 8866 138 16 20 Bulgarian Telecommunication C LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 364 138 65 ImpSat 11172 358 99 53 Servicios Alestra S.A de C.V 8151 302 455 134 UniNet S.A. de C.V. 16814 212 13 7 NSS, S.A. 6147 191 86 19 Telefonica Del Peru 11664 154 11 21 Keytech SA 6505 137 90 94 Global One Communicaoes Ltda 6503 132 171 88 AVANTEL, S.A. 7303 122 55 18 Telecom Argentina Stet-France 11992 90 9 31 Integrated Systems 10620 86 12 5 TVCABLE BOGOTA 14420 85 6 35 ANDINATEL S.A. 6535 84 5 18 Chilesat Servicios Empresari 10481 81 32 7 Prima S.A. 11556 81 41 3 Cable-Wireless Panama 11311 80 7 20 Sinectis S.A. 5639 77 8 8 Telecommunications Services o 15311 76 21 36 Telefonica Empresas 10292 71 6 27 TELECOMMUNICATIONS OF JAMAICA 14117 71 6 4 Telefonica del Sur S.A. AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 251 631 218 The Internet Solution 5536 114 16 4 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 92 276 81 The Internetworking Company o 20928 59 16 1 Noor Advanced Technologies AS 14988 48 16 1 Botswana Telecommunications C 24835 36 34 7 RAYA Telecom - Egypt 6713 32 42 10 Itissalat Al-MAGHRIB 9129 31 3 4 UUNET Kenya 5713 26 125 24 Telkom SA Ltd 8524 25 1 4 AUCEGYPT Autonomous System 16637 24 10 19 Johnnic e-Ventures 10798 18 1 12 Standard Bank of South Africa 12258 18 3 12 Vodacom Internet Company 12455 17 4 2 Jambonet Autonomous system 21491 16 1 3 UTL On-line is RF broadband I 8346 15 7 14 SONATEL-AS Autonomous System 15706 15 4 2 Sudatel Internet Exchange Aut 21280 14 2 3 Swift Global Kenya Ltd.Is an 15808 13 1 2 Communication Solutions Ltd i Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 739 733 Covad Communications 4134 834 678 Data Communications Bureau 4323 773 562 Time Warner Telecom 9583 531 428 Satyam Infoway Ltd., 721 713 418 DLA Systems Automation Center 7843 489 389 Adelphia Corp. 22773 397 379 Cox Communications, Inc. Atla 27364 395 376 Armstrong Cable Services 5668 393 375 Century Telephone 6197 720 370 BellSouth Network Solutions, 6467 389 359 E.Spire Communications, Inc. 701 1267 357 UUNET Technologies, Inc. 22909 368 331 Comcast Cable Corporation 4755 367 318 Videsh Sanchar Nigam Ltd. Aut 1239 944 316 Sprint 9929 347 314 China Netcom Corp. 17676 350 309 XTAGE CORPORATION 6347 398 305 SAVVIS Communications Corpora 11172 358 305 Servicios Alestra S.A de C.V 6140 364 299 ImpSat List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS 65115 PRIVATE 64.28.115.0/24 20385 AccessLine Communica 23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS 23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS 64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE 64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE 65217 PRIVATE 192.102.236.0/24 217 University of Minnes 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 22750 UNALLOCATED 196.44.64.0/19 3741 The Internet Solutio 22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking 22750 UNALLOCATED 196.44.224.0/20 3741 The Internet Solutio 64572 PRIVATE 219.146.96.0/21 17633 ASN for Shandong Pro 64572 PRIVATE 219.146.96.0/20 17633 ASN for Shandong Pro 64572 PRIVATE 219.146.104.0/21 17633 ASN for Shandong Pro 64573 PRIVATE 219.146.112.0/21 17633 ASN for Shandong Pro 64573 PRIVATE 219.146.112.0/20 17633 ASN for Shandong Pro 64573 PRIVATE 219.146.120.0/21 17633 ASN for Shandong Pro 64576 PRIVATE 219.146.128.0/21 17633 ASN for Shandong Pro 64576 PRIVATE 219.146.128.0/20 17633 ASN for Shandong Pro 64576 PRIVATE 219.146.136.0/21 17633 ASN for Shandong Pro 64582 PRIVATE 219.146.144.0/22 17633 ASN for Shandong Pro 64582 PRIVATE 219.146.144.0/21 17633 ASN for Shandong Pro 64582 PRIVATE 219.146.148.0/22 17633 ASN for Shandong Pro 64584 PRIVATE 219.146.176.0/22 17633 ASN for Shandong Pro 64584 PRIVATE 219.146.176.0/21 17633 ASN for Shandong Pro 64584 PRIVATE 219.146.180.0/22 17633 ASN for Shandong Pro 64575 PRIVATE 219.146.192.0/22 17633 ASN for Shandong Pro 64575 PRIVATE 219.146.192.0/21 17633 ASN for Shandong Pro 64575 PRIVATE 219.146.196.0/22 17633 ASN for Shandong Pro 64580 PRIVATE 219.146.208.0/21 17633 ASN for Shandong Pro 64581 PRIVATE 219.146.216.0/21 17633 ASN for Shandong Pro 64585 PRIVATE 219.146.224.0/21 17633 ASN for Shandong Pro 64586 PRIVATE 219.146.232.0/21 17633 ASN for Shandong Pro 64582 PRIVATE 219.147.0.0/24 17633 ASN for Shandong Pro 64572 PRIVATE 222.173.128.0/20 17633 ASN for Shandong Pro 64572 PRIVATE 222.173.128.0/19 17633 ASN for Shandong Pro 64572 PRIVATE 222.173.144.0/20 17633 ASN for Shandong Pro 64573 PRIVATE 222.173.160.0/20 17633 ASN for Shandong Pro 64573 PRIVATE 222.173.160.0/19 17633 ASN for Shandong Pro 64573 PRIVATE 222.173.176.0/20 17633 ASN for Shandong Pro 64576 PRIVATE 222.173.192.0/20 17633 ASN for Shandong Pro 64576 PRIVATE 222.173.192.0/19 17633 ASN for Shandong Pro 64576 PRIVATE 222.173.208.0/20 17633 ASN for Shandong Pro 64582 PRIVATE 222.173.224.0/20 17633 ASN for Shandong Pro 64582 PRIVATE 222.173.224.0/19 17633 ASN for Shandong Pro 64582 PRIVATE 222.173.240.0/20 17633 ASN for Shandong Pro 64584 PRIVATE 222.174.96.0/20 17633 ASN for Shandong Pro 64584 PRIVATE 222.174.96.0/19 17633 ASN for Shandong Pro 64584 PRIVATE 222.174.112.0/20 17633 ASN for Shandong Pro 64575 PRIVATE 222.174.160.0/20 17633 ASN for Shandong Pro 64575 PRIVATE 222.174.160.0/19 17633 ASN for Shandong Pro 64575 PRIVATE 222.174.176.0/20 17633 ASN for Shandong Pro 64580 PRIVATE 222.174.224.0/19 17633 ASN for Shandong Pro 64581 PRIVATE 222.175.0.0/19 17633 ASN for Shandong Pro 64585 PRIVATE 222.175.32.0/19 17633 ASN for Shandong Pro 64586 PRIVATE 222.175.64.0/19 17633 ASN for Shandong Pro Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 111.0.0.0/24 7563 Korea Internet Infrastructure 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 721 DLA Systems Automation Center 192.172.11.0/24 721 DLA Systems Automation Center Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:3 /10:6 /11:15 /12:63 /13:134 /14:306 /15:541 /16:8041 /17:2217 /18:3849 /19:9808 /20:10328 /21:7755 /22:10699 /23:12325 /24:80141 /25:237 /26:196 /27:105 /28:49 /29:31 /30:75 /31:0 /32:37 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 724 739 Covad Communications 2386 595 829 AT&T Data Communications Serv 6197 572 720 BellSouth Network Solutions, 7018 555 1411 AT&T WorldNet Services 702 388 634 UUNET - Commercial IP service 27364 379 395 Armstrong Cable Services 1239 372 944 Sprint 9583 370 531 Satyam Infoway Ltd., 4766 363 545 Korea Internet Exchange for " 701 356 1267 UUNET Technologies, Inc. 5668 343 393 Century Telephone 6198 317 431 BellSouth Network Solutions, 6347 297 398 SAVVIS Communications Corpora 20115 292 578 Charter Communications 6467 287 389 E.Spire Communications, Inc. 9929 278 347 China Netcom Corp. 6517 269 296 Yipes Communications, Inc. 21502 265 268 NUMERICABLE is a cabled netwo 13609 263 306 Choice One Communications Inc 3320 246 300 Deutsche Telekom AG Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:3 12:1395 13:1 15:5 16:2 17:3 20:9 24:723 32:66 33:2 38:80 40:54 44:4 52:3 55:1 56:3 57:17 60:6 61:499 62:488 63:1838 64:2332 65:2055 66:2476 67:390 68:535 69:719 70:70 80:525 81:549 82:316 83:146 84:26 111:1 128:109 129:169 130:87 131:188 132:25 134:182 135:17 136:134 137:55 138:169 139:35 140:184 141:107 142:120 143:67 144:156 145:41 146:294 147:94 148:424 149:107 150:87 151:70 152:153 153:68 154:2 155:127 156:58 157:71 158:143 159:161 160:57 161:70 162:379 163:79 164:210 165:159 166:118 167:223 168:292 169:115 170:270 171:9 192:5585 193:2896 194:2127 195:1481 196:587 198:3674 199:3255 200:3797 201:16 202:4836 203:5646 204:3237 205:2070 206:2316 207:2543 208:2141 209:3044 210:1484 211:626 212:1075 213:1186 214:132 215:31 216:3718 217:1003 218:177 219:101 220:249 221:37 222:40 End of report

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The Cidr Report
by cidr-report＠potaroo.net 17 Sep '04

17 Sep '04

This report has been generated at Fri Sep 17 21:44:13 2004 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 10-09-04 143329 98595 11-09-04 143556 98696 12-09-04 143474 98684 13-09-04 143397 98654 14-09-04 143451 98833 15-09-04 143615 98857 16-09-04 143660 98839 17-09-04 143628 98794 AS Summary 17981 Number of ASes in routing system 7313 Number of ASes announcing only one prefix 1386 Largest number of prefixes announced by an AS AS7018 : ATTW AT&T WorldNet Services 86646016 Largest address span announced by an AS (/32s) AS721 : DNIC DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 17Sep04 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 143741 98842 44899 31.2% All ASes AS18566 739 7 732 99.1% CVAD Covad Communications AS4134 783 172 611 78.0% CHINANET-BACKBONE No.31,Jin-rong Street AS4323 773 212 561 72.6% TWTC Time Warner Telecom AS7018 1386 958 428 30.9% ATTW AT&T WorldNet Services AS7843 489 100 389 79.6% ADELPH-13 Adelphia Corp. AS22773 398 21 377 94.7% CXA Cox Communications Inc. AS27364 395 36 359 90.9% ARMC Armstrong Cable Services AS6467 385 30 355 92.2% ACSI e.spire Communications, Inc. AS701 1244 897 347 27.9% UU UUNET Technologies, Inc. AS22909 366 45 321 87.7% CMCS Comcast Cable Communications, Inc. AS1239 950 634 316 33.3% SPRN Sprint AS6197 718 404 314 43.7% BNS-14 BellSouth Network Solutions, Inc AS9929 337 33 304 90.2% CNCNET-CN China Netcom Corp. AS11172 355 52 303 85.4% Alestra AS17676 348 45 303 87.1% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS6347 399 99 300 75.2% SAVV SAVVIS Communications Corporation AS6478 358 71 287 80.2% ATTW AT&T WorldNet Services AS4355 381 99 282 74.0% ERSD EARTHLINK, INC AS21502 268 3 265 98.9% ASN-NUMERICABLE NUMERICABLE is a cabled network in France, AS4766 530 266 264 49.8% KIXS-AS-KR Korea Telecom AS14654 259 6 253 97.7% WAYPOR-3 Wayport AS9443 359 110 249 69.4% INTERNETPRIMUS-AS-AP Primus Telecommunications AS6140 364 116 248 68.1% IMPSA ImpSat AS2386 829 596 233 28.1% ADCS-1 AT&T Data Communications Services AS25844 244 16 228 93.4% SASMFL-2 Skadden, Arps, Slate, Meagher & Flom LLP AS9583 530 308 222 41.9% SIFY-AS-IN Sify Limited AS6198 429 210 219 51.0% BNS-14 BellSouth Network Solutions, Inc AS721 713 507 206 28.9% DNIC DoD Network Information Center AS6327 228 29 199 87.3% SHAWC-2 Shaw Communications Inc. AS22291 261 69 192 73.6% CC04 Charter Communications Total 15818 6151 9667 61.1% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 AHSICHCL Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATTW AT&T WorldNet Services 24.246.38.0/24 AS25994 NPGCAB NPG Cable, INC 24.246.128.0/18 AS7018 ATTW AT&T WorldNet Services 64.46.4.0/22 AS11711 TULARO TULAROSA COMMUNICATIONS 64.46.27.0/24 AS8674 NETNOD-IX Netnod Internet Exchange Sverige AB 64.46.34.0/24 AS3408 64.46.63.0/24 AS7850 IHIGHW iHighway.net, Inc. 64.83.96.0/19 AS26956 NETFR NetFree Communications 66.114.0.0/19 AS16526 BIRCHT Birch Telecom, Inc. 69.26.32.0/19 AS17307 VIRTEL-15 Virtela Communications 111.0.0.0/24 AS7563 KII-AS Korea Internet Infrastructure 132.0.0.0/10 AS721 DNIC DoD Network Information Center 137.0.0.0/13 AS721 DNIC DoD Network Information Center 138.136.0.0/13 AS721 DNIC DoD Network Information Center 158.0.0.0/13 AS721 DNIC DoD Network Information Center 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.30.127.0/24 AS719 LANLINK Elisa Oyj 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS4738 SAARDNET-AS South Australian Academic Research and Development Network 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.70.164.0/24 AS25689 NRCC-2 National Research Council of Canada 192.80.64.0/19 AS1 LVLT Level 3 Communications, Inc. 192.81.182.0/24 AS719 LANLINK Elisa Oyj 192.81.183.0/24 AS719 LANLINK Elisa Oyj 192.81.184.0/24 AS719 LANLINK Elisa Oyj 192.119.135.0/24 AS270 NASA National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATTW AT&T WorldNet Services 192.136.71.0/24 AS719 LANLINK Elisa Oyj 192.136.79.0/24 AS719 LANLINK Elisa Oyj 192.138.208.0/20 AS1 LVLT Level 3 Communications, Inc. 192.153.144.0/21 AS721 DNIC DoD Network Information Center 192.172.0.0/19 AS721 DNIC DoD Network Information Center 192.188.208.0/20 AS721 DNIC DoD Network Information Center 192.190.16.0/21 AS1 LVLT Level 3 Communications, Inc. 192.243.32.0/23 AS2044 PALINA Palin Aquisitions Inc. 196.1.68.0/24 AS3356 LEVEL3 Level 3 Communications 196.1.104.0/24 AS17495 GATEWAY-AP BROADBAND WIRELESSS INTERNET SERVICE PROVIDER 196.1.105.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology 196.1.106.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology 196.1.109.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology 196.1.110.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology 196.1.111.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology 196.1.114.0/24 AS2697 ERX-ERNET-AS National Centre for Software Technology 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 196.3.65.0/24 AS4471 MICA-5 Michigan Internet Cooperative Association 196.12.32.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.33.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.34.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.36.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.37.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.38.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.39.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.40.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.41.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.42.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.43.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.44.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.45.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.46.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.47.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.48.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.49.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.50.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.51.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.52.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.53.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.54.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.55.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.56.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.57.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.58.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.59.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.62.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 196.12.63.0/24 AS7633 SOFTNET-AS-AP Software Technology Parks of India 198.17.1.0/24 AS2513 JPNIC-ASBLOCK-AP JPNIC 198.22.61.0/24 AS9792 CIS-AS-AP Corinthian Internet Services 198.23.26.0/24 AS4390 BELLAT-7 Bell Atlantic, Inc. 198.48.0.0/22 AS23754 CITYLINK-AS-NZ Citylink 198.51.210.0/24 AS4736 MAGNADATA-AU Magnadata Australia Pty Ltd 198.97.72.0/21 AS721 DNIC DoD Network Information Center 198.97.80.0/20 AS721 DNIC DoD Network Information Center 198.97.88.0/24 AS89 NUSC-1 Naval Underwater Systems Center 198.97.208.0/23 AS721 DNIC DoD Network Information Center 198.97.209.0/24 AS1727 RITSC RITSC-PACSW 198.97.240.0/20 AS721 DNIC DoD Network Information Center 198.97.247.0/24 AS3475 DEPART-52 Department of the Navy 198.99.173.0/24 AS703 UNSPECIFIED UUNET 198.101.4.0/22 AS721 DNIC DoD Network Information Center 198.136.32.0/20 AS19329 MCBCC Martin County Board of County Commissioners 198.142.0.0/16 AS4804 MPX-AS Microplex PTY LTD 198.142.0.0/19 AS4804 MPX-AS Microplex PTY LTD 198.142.5.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.12.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.15.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.19.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.32.0/19 AS4804 MPX-AS Microplex PTY LTD 198.142.39.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.40.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.44.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.64.0/19 AS4804 MPX-AS Microplex PTY LTD 198.142.96.0/19 AS4804 MPX-AS Microplex PTY LTD 198.142.98.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.104.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.114.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.128.0/19 AS4804 MPX-AS Microplex PTY LTD 198.142.160.0/19 AS4804 MPX-AS Microplex PTY LTD 198.142.176.0/24 AS4804 MPX-AS Microplex PTY LTD 198.142.192.0/19 AS4804 MPX-AS Microplex PTY LTD 198.142.224.0/19 AS4804 MPX-AS Microplex PTY LTD 198.144.32.0/19 AS3998 CITY CityNet, Inc. 198.161.87.0/24 AS6539 GTGR GT Group Telecom Services Corp. 198.161.165.0/24 AS852 AGTA Telus Advanced Communications 198.163.155.0/24 AS684 MRN Manitoba Regional Network 198.167.0.0/16 AS7456 INS-51 Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 UU UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASK SaskTel 198.232.133.0/24 AS23075 SKOTOS Skotos Tech, Inc 199.10.0.0/16 AS721 DNIC DoD Network Information Center 199.60.0.0/20 AS271 UBC-3 University of British Columbia 199.96.44.0/23 AS19092 360NE-1 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NE-1 360Networks (USA) Inc. 199.114.0.0/18 AS568 DISOUN DISO-UNRRA 199.114.0.0/21 AS721 DNIC DoD Network Information Center 199.114.128.0/18 AS721 DNIC DoD Network Information Center 199.114.130.0/24 AS721 DNIC DoD Network Information Center 199.114.132.0/24 AS721 DNIC DoD Network Information Center 199.114.134.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.136.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.138.0/24 AS721 DNIC DoD Network Information Center 199.114.140.0/24 AS3544 DISAUN DISA/UNRRA 199.114.142.0/24 AS721 DNIC DoD Network Information Center 199.114.144.0/24 AS721 DNIC DoD Network Information Center 199.114.148.0/24 AS721 DNIC DoD Network Information Center 199.114.150.0/24 AS721 DNIC DoD Network Information Center 199.114.152.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.154.0/24 AS1733 ADP-41 AF DDN PMO 199.114.156.0/24 AS1913 DLA-8 Defense Logistics Agency 199.114.160.0/24 AS1733 ADP-41 AF DDN PMO 199.120.32.0/19 AS16582 NXLI NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DNIC DoD Network Information Center 199.123.0.0/18 AS721 DNIC DoD Network Information Center 199.123.16.0/20 AS721 DNIC DoD Network Information Center 199.123.80.0/21 AS721 DNIC DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST IQuest Internet 199.197.8.0/22 AS21814 PARSON-18 Parsons Corp. 199.202.0.0/16 AS701 UU UUNET Technologies, Inc. 202.47.1.0/24 AS7491 PI-PH-AS-AP PI-PHILIPINES 202.70.28.0/24 AS4515 ERX-STAR Star Internet Services Ltd. 202.73.128.0/22 AS4058 LINKAGENET-AP CPCNet Hong Kong Ltd. 202.81.96.0/19 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.81.109.0/24 AS7657 TIG-US-PAS-AP The Internet Group Limited 202.81.121.0/24 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.133.3.0/24 AS9335 CIP-JAPAN-AS-AP ATT IPlus 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.84.192.0/19 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.192.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.84.208.0/20 AS17433 PHILWEB-AP PhilWeb.Com, Inc. 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.154.125.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLAB-1 TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBI Exobit Networks Inc. 204.196.0.0/14 AS1 LVLT Level 3 Communications, Inc. 205.150.0.0/15 AS701 UU UUNET Technologies, Inc. 205.159.72.0/24 AS1660 ANSCOM-5 ANS Communications 206.167.57.0/24 AS376 RISQR-3 Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ACCA-2 Allstream Corp. Corporation Allstream 206.251.69.0/24 AS27429 TIL-33 Telesat International Ltd. 206.253.190.0/23 AS8123 POLYBA Polybase 207.231.96.0/19 AS11194 NUNETI NuNet Inc 208.81.187.0/24 AS19194 SNL-8 Sentris Network LLC 209.143.192.0/18 AS3561 CWU Cable & Wireless USA 209.172.0.0/18 AS7770 TRTI Triton Technologies, Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INS-52 Inter-Pacific Network Services 209.213.48.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.49.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.50.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.51.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.55.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.213.56.0/24 AS10629 INS-52 Inter-Pacific Network Services 209.251.0.0/19 AS11036 SISCOM-1 SISCOM, Inc 216.14.64.0/20 AS3561 CWU Cable & Wireless USA 216.37.110.0/23 AS4264 CERFN California Education and Research Federation Network 216.96.128.0/18 AS7018 ATTW AT&T WorldNet Services 216.145.130.0/24 AS11937 TRXI TRX Inc. 216.145.132.0/24 AS11937 TRXI TRX Inc. 216.145.134.0/24 AS11937 TRXI TRX Inc. 216.145.156.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.158.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.176.0/21 AS20304 JIS-32 JVLNET Internet Services 216.145.177.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.178.0/24 AS20304 JIS-32 JVLNET Internet Services 216.145.184.0/21 AS10758 INWAVE INWave Internet, Inc 216.145.200.0/21 AS20304 JIS-32 JVLNET Internet Services 216.186.151.0/24 AS3356 LEVEL3 Level 3 Communications 216.186.152.0/21 AS3356 LEVEL3 Level 3 Communications 216.186.160.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.164.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.192.0/22 AS3356 LEVEL3 Level 3 Communications 216.186.198.0/23 AS3356 LEVEL3 Level 3 Communications 216.186.248.0/23 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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ARIN is allocating from 72.0.0.0/8
by Leslie Nobile 16 Sep '04

16 Sep '04

Hello- ARIN began allocating IP address space from 72.0.0.0/8 on Sept 10, 2004. We anticipate that we will be making allocations from 71.0.0.0/8 in the near future. These 2 IP address blocks were issued to ARIN by the IANA on Aug. 2, 2004. This is a reminder message that you may need to adjust any filters you have in place for these two blocks accordingly. For informational purposes, a list of ARIN's currently administered IP blocks can be found under "CIDR Blocks" at: http://www.arin.net/statistics/index.html Regards, Leslie Nobile Director, Registration Services American Registry for Internet Numbers (ARIN)

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Draft 2 of the routing wg agenda - RIPE 49
by Joao Damas 16 Sep '04

16 Sep '04

Hello all, I have adjusted the agenda of the routing wg to cope with changes in speaker availability and there is a new presentation by Olaf Maennel. See you in Manchester. Regards, Joao Damas ISC Tue 21/Sept (16:00-17:30) A. Preliminaries (the chairs, 5 min) - introduction - participants' list - volunteering of scribe - jabber/irc interface - agenda bashing - RIPE 47 minutes - actions from earlier meetings - upcoming RIPE NCC routing registry courses B. Michael Behringer/Christian Panigl (40 min) "Transparency vs. Security in Core Networks: Pros and Cons" Abstract: This is meant to be a discussion session for the EOF presentation. What do RIPE attendees think about either approach? Is there a "best practice"? C. Tim Griffin (25 min) Routing wedgies D. Zhang Shu (20 min) intra-domain routing instability 1. The results of some intra-domain routing instability measurements that we did on two academic networks in Japan 2. The introduction of a system that we devoleped to measure intra-domain routing instability, which can also be used by network operators to monitor the routing of their networks. http://pe0.koganei.wide.ad.jp/rtanaly/ Proceedings of ACM SIGCOMM 2004 NetTS workshop: "Troubleshooting on Intra-Domain Routing Instability" Wed 22/Sept (11:00-12:30) E. Pedro Roque Marques (30 min) Title: BGP network design Description: This presentation will focus on a set of frequently asked questions that network operators have regarding the logical design of BGP networks. These include topics such as route reflector placement on a network and BGP configuration tradeoffs. F. Randy Bush (20 min) Happy packets What is the relationship between control plane instability and data planeinstability? G. Mathew Williams (15 min) RIS update. H. Olaf Maennel (15 min) Locating Internet Routing Instabilities http://www.acm.org/sigs/sigcomm/sigcomm2004/papers/p479-feldmann11.pdf Y. General I/O with Other WGs Z. AOB

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.255 and .0 addresses
by Volodymyr Yakovenko 13 Sep '04

13 Sep '04

Dear Colleagues, I am not quite sure that routing-wg@ is a right place to ask my question, but nothing more convenient came to my mind :-) I am trying to push one BIG telecom equipment vendor TAC to consider wrong situation with assignment of IP addresses like xxx.xxx.xxx.0 and xxx.xxx.xxx.255 from dynamic IP pools bigger than or equal to /24. Quick googling has not shown any STD or BCP documents, which could be used as reference, but has shown number of pages, saying something like "do not use .0 or .255 addresses, it could cause problems". Our small research has shown that some sites are not reachable from .255 and .0 addresses. Are there any published documents or strong research results which could be used as reference point to illustrate this problem existance? -- Regards, Volodymyr.

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New IPv6 Address Block Allocated to RIPE NCC
by leo vegoda 13 Sep '04

13 Sep '04

Dear Colleagues, The RIPE NCC received the IPv6 address range 2001:5000::/20 from the IANA in September 2004. You may wish to adjust any filters you have in place accordingly. More information on the IP space administered by the RIPE NCC can be found on our web site at: <https://www.ripe.net/ripe/docs/smallest-alloc-sizes.html> Regards, -- leo vegoda Registration Services Manager RIPE NCC

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