- routing-wg - mailman.ripe.net

Suggestion for unallocated IP-Space
by kurt_kayser＠gmx.de 18 Mar '02

18 Mar '02

Hello Routing-WG, since it's more and more difficult to determine, which IP-space is used correctly in the Routing table, is there any chance to setup an easy-retrievable page (say via HTTP or FTP) to view current unallocated IP-space. We all know martians such as: RFC-1918-space, default, localhost and Multicast Space. But it's very hard to filter correctly on address- space that's currently handed out by the RIRs. If there could be a database run - say in a weekly interval - which could generate the 'empty' space blocks in a list - which could again used to filter against. Any supports for this idea? Regards, Kurt -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

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CIDR Report failed today
by Philip Smith 16 Mar '02

16 Mar '02

Apologies for the failed CIDR Report and the blank e-mail today. The system ran out of disk space a few hours ago - I'm currently working to fix the problem and everything should be back to normal tomorrow. best wishes! philip --

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None
by Tony Bates 16 Mar '02

16 Mar '02

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Weekly Routing Table Report
by Routing Table Analysis 15 Mar '02

15 Mar '02

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 For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 15 Mar, 2002 Analysis Summary ---------------- BGP routing table entries examined: 109867 Prefixes after maximum aggregation: 72311 Unique aggregates announced to Internet: 52933 Total ASes present in the Internet Routing Table: 12759 Origin-only ASes present in the Internet Routing Table: 11041 Origin ASes announcing only one prefix: 4833 Transit ASes present in the Internet Routing Table: 1718 Transit-only ASes present in the Internet Routing Table: 59 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 57 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 15 Number of addresses announced to Internet: 1166095016 Equivalent to 69 /8s, 129 /16s and 50 /24s Percentage of available address space announced: 31.5 Percentage of allocated address space announced: 59.5 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 73540 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 17982 Total APNIC prefixes after maximum aggregation: 10697 Prefixes being announced from the APNIC address blocks: 16503 Unique aggregates announced from the APNIC address blocks: 10010 APNIC Region origin ASes present in the Internet Routing Table: 1461 APNIC Region origin ASes announcing only one prefix: 481 APNIC Region transit ASes present in the Internet Routing Table: 258 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 81733696 Equivalent to 4 /8s, 223 /16s and 40 /24s Percentage of available APNIC address space announced: 60.4 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73466 Total ARIN prefixes after maximum aggregation: 47467 Prefixes being announced from the ARIN address blocks: 51950 Unique aggregates announced from the ARIN address blocks: 17120 ARIN Region origin ASes present in the Internet Routing Table: 7558 ARIN Region origin ASes announcing only one prefix: 2364 ARIN Region transit ASes present in the Internet Routing Table: 778 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 187781316 Equivalent to 11 /8s, 49 /16s and 80 /24s Percentage of available ARIN address space announced: 70.0 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 18363 Total RIPE prefixes after maximum aggregation: 14147 Prefixes being announced from the RIPE address blocks: 15145 Unique aggregates announced from the RIPE address blocks: 10078 RIPE Region origin ASes present in the Internet Routing Table: 3681 RIPE Region origin ASes announcing only one prefix: 1988 RIPE Region transit ASes present in the Internet Routing Table: 671 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 107554592 Equivalent to 6 /8s, 105 /16s and 39 /24s Percentage of available RIPE address space announced: 71.2 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1288 1228 950 Telstra Pty Ltd 4538 463 1162 16 China Education and Research 703 409 334 318 UUNET Technologies, Inc. 2907 405 1926 371 SINET Japan 2764 385 361 361 connect.com.au pty ltd 7474 298 289 202 Optus Communications Pty Ltd 4755 297 111 83 Videsh Sanchar Nigam Ltd. Aut 4134 274 1962 97 Data Communications Bureau 9443 274 44 63 Primus Telecommunications 9394 254 113 4 CHINA RAILWAY Internet(CRNET) 17557 236 15 99 Pakistan Telecom 4766 212 1520 148 Korea Internet Exchange for " 4804 165 84 68 Microplex PTY LTD 7539 164 253 161 TANet2, sponsored by NSC, TAI 9583 149 32 5 Satyam Infoway Ltd., 9768 137 385 82 Korea Telecom 4713 127 906 104 NTT Communications Corporatio 7657 123 22 86 The Internet Group Limited 4780 118 186 40 Digital United Inc. 17676 117 1872 17 XTAGE CORPORATION RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1034 2611 844 UUNET Technologies, Inc. 3301 394 924 349 TeliaNet Sweden 3215 261 570 157 France Telecom / &Equant 1257 236 486 232 SWIPnet Swedish IP Network 680 231 2147 230 DFN-IP service G-WiN 5515 216 697 171 Sonera Finland Autonomous Sys 5400 198 83 93 Concert European Core Network 3320 197 1964 172 Deutsche Telekom AG 786 182 1874 182 The JANET IP Service 719 163 289 118 LANLINK autonomous system 8708 157 23 145 Romania Data Systems S.A. 2856 130 788 119 BTnet UK Regional network 3303 124 579 124 Swisscom Ltd 12302 123 8 44 MobiFon S.A. 8297 118 37 66 Teleglobe Autonomous System i 3269 116 693 70 TELECOM ITALIA 517 102 227 100 KPNQwest Germany GmbH 9051 101 6 25 INCONET Autonomous System 2874 97 100 37 Global One Services AB 5511 92 192 80 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2138 8355 1506 UUNET Technologies, Inc. 7018 1214 7510 908 AT&T 3908 846 1675 481 Supernet, Inc. 1 836 8123 610 BBN Planet 1239 796 3366 625 Sprint 4323 640 436 253 Time Warner Communications, I 852 628 1128 413 Telus Advanced Communications 7046 618 835 403 UUNET Technologies, Inc. 209 556 1993 322 Qwest 7132 518 545 158 Southwestern Bell Internet Se 3549 485 843 243 Global Crossing 690 436 67 282 Merit Network 2914 421 2177 418 Verio, Inc. 7843 385 313 50 Adelphia Corp. 705 381 116 273 UUNET Technologies, Inc. 2149 370 224 309 Performance Systems, Inc. 3741 345 731 235 The Internet Solution 2386 331 371 189 AT&T Data Communications Serv 6197 326 215 168 BellSouth Network Solutions, 3561 321 2183 287 Cable & Wireless USA Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 463 447 China Education and Research 4323 640 387 Time Warner Communications, I 3908 846 365 Supernet, Inc. 7132 518 360 Southwestern Bell Internet Se 1221 1288 338 Telstra Pty Ltd 7843 385 335 Adelphia Corp. 7018 1214 306 AT&T 4151 305 289 USDA 6198 309 276 BellSouth Network Solutions, 11371 280 274 Rhythms NetConnections 9394 254 250 CHINA RAILWAY Internet(CRNET) 3549 485 242 Global Crossing 6347 318 237 SAVVIS Communications Corpora 209 556 234 Qwest 7029 245 230 Alltel Information Services, 1 836 226 BBN Planet 852 628 215 Telus Advanced Communications 7046 618 215 UUNET Technologies, Inc. 4755 297 214 Videsh Sanchar Nigam Ltd. Aut 9443 274 211 Primus Telecommunications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 64581 PRIVATE 192.89.47.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.89.49.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.89.158.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.89.183.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.89.190.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.89.191.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.89.192.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.89.193.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.89.194.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.130.46.0/24 5515 Sonera Finland Auton 64553 PRIVATE 192.130.156.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.194.181.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.194.236.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.194.244.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.194.245.0/24 5515 Sonera Finland Auton 64581 PRIVATE 192.194.246.0/23 5515 Sonera Finland Auton 64581 PRIVATE 192.194.248.0/23 5515 Sonera Finland Auton 64581 PRIVATE 193.208.88.0/24 5515 Sonera Finland Auton 64581 PRIVATE 193.209.70.0/24 5515 Sonera Finland Auton 64581 PRIVATE 193.209.129.0/24 5515 Sonera Finland Auton 64581 PRIVATE 193.210.27.0/24 5515 Sonera Finland Auton 64581 PRIVATE 193.210.59.0/24 5515 Sonera Finland Auton 64581 PRIVATE 193.210.120.0/23 5515 Sonera Finland Auton 64581 PRIVATE 193.210.122.0/24 5515 Sonera Finland Auton 64581 PRIVATE 193.210.123.0/24 5515 Sonera Finland Auton 64558 PRIVATE 193.211.44.0/24 5515 Sonera Finland Auton 64581 PRIVATE 193.211.61.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.89.71.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.89.164.0/22 5515 Sonera Finland Auton 64581 PRIVATE 194.89.246.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.89.248.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.89.249.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.111.64.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.111.65.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.111.66.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.111.67.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.111.68.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.111.69.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.111.70.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.111.71.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.137.62.0/24 5515 Sonera Finland Auton 64558 PRIVATE 194.137.237.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.142.170.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.104.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.157.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.158.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.159.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.160.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.178.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.250.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.251.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.197.252.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.252.103.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.252.104.0/24 5515 Sonera Finland Auton 64581 PRIVATE 194.252.202.0/23 5515 Sonera Finland Auton 64581 PRIVATE 195.156.255.0/24 5515 Sonera Finland Auton 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 96.0.0.0/20 3549 Global Crossing 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.235.0.0/16 6025 US DOD NIC Unregistered 189.186.184.0/24 4471 Michigan Internet Cooperative 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:5 /10:8 /11:14 /12:35 /13:88 /14:230 /15:405 /16:7189 /17:1388 /18:2552 /19:7419 /20:6909 /21:4909 /22:7522 /23:9180 /24:61077 /25:224 /26:239 /27:105 /28:90 /29:92 /30:130 /31:0 /32:38 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1383 2138 UUNET Technologies, Inc. 1221 1145 1288 Telstra Pty Ltd 702 658 1034 UUNET Technologies, Inc. 7018 634 1214 AT&T 3908 579 846 Supernet, Inc. 4323 510 640 Time Warner Communications, I 1239 455 796 Sprint 7046 435 618 UUNET Technologies, Inc. 1 433 836 BBN Planet 690 432 436 Merit Network 852 382 628 Telus Advanced Communications 209 369 556 Qwest 3549 348 485 Global Crossing 2764 341 385 connect.com.au pty ltd 703 330 409 UUNET Technologies, Inc. 705 329 381 UUNET Technologies, Inc. 2149 278 370 Performance Systems, Inc. 6197 275 326 BellSouth Network Solutions, 11371 274 280 Rhythms NetConnections 7066 272 301 Virginia Polytechnic Institut Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 9:1 12:482 13:10 15:1 17:5 20:2 24:760 25:1 32:68 38:9 40:6 44:1 57:14 61:277 62:170 63:1890 64:1167 65:1076 66:813 67:53 68:4 80:209 81:7 128:64 129:121 130:23 131:56 132:11 133:3 134:126 135:9 136:250 137:102 138:147 139:48 140:188 141:64 142:83 143:37 144:143 145:11 146:218 147:157 148:133 149:92 150:41 151:50 152:342 153:33 154:8 155:89 156:76 157:116 158:73 159:125 160:24 161:55 162:140 163:107 164:98 165:123 166:224 167:188 168:95 169:50 170:290 171:2 189:1 192:5434 193:2234 194:2117 195:799 196:428 198:3708 199:3224 200:2368 201:1 202:3051 203:4559 204:3304 205:2147 206:2505 207:2638 208:2562 209:2796 210:558 211:201 212:869 213:590 214:9 215:18 216:3012 217:461 218:21 End of report

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Re: Suggestion for unallocated IP-Space
by Christian Panigl, ACOnet/VIX/UniVie 14 Mar '02

14 Mar '02

>Date: Thu, 14 Mar 2002 09:46:43 +1000 >From: Philip Smith <pfs(a)cisco.com> > >> b) Loss of the service in the midst of a DoS attack. > >I don't see why this is relevant. The idea is that the ISP taking the feed >would build an access-list of denied networks probably on a daily basis, or >however often they consider necessary. Pretty much as some ISPs build their >BGP filters from the IRR at the moment. Hi Philip et al, I was wondering for a while what I should do with this BGP feed of unallocated prefixes ... Now, after Philip has made it clear, why aren't we simply putting those prefixes in the IRRs (e.g. as a route-set, or simply as routes with a specific/reserved origin-AS) and let interested ISPs use their usual (RA)toolset to build filters at their regular schedules ? >Please don't suggest going down the path of further overburdening the DNS. >Having routing dependant on a higher layer protocol is not too clever. I wouldn't like this either, but that's a different story ;-) Cheers CP --- ---------------------------------------------------------------------- --- --- Christian Panigl : Vienna University Computer Center - ACOnet --- --- VUCC - ACOnet - VIX : -------------------------------------------- --- --- Universitaetsstrasse 7 : Mail: Panigl(a)CC.UniVie.ac.at (CP8-RIPE) --- --- A-1010 Vienna / Austria : Tel: +43 1 4277-14032 (Fax: -9140) --- --- ---------------------------------------------------------------------- ---

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RE: RIR-Administrative IP-range server
by Koepp, Karsten 11 Mar '02

11 Mar '02

Hi, first try out: http://www.iana.org/assignments/ipv4-address-space and have fun if this is not enough to filter. Karsten > -----Original Message----- > From: kurt_kayser(a)gmx.de [mailto:kurt_kayser@gmx.de] > Sent: Monday, March 11, 2002 2:17 PM > To: routing-wg(a)ripe.net > Subject: RIR-Administrative IP-range server > > > > Hi, > > > > On Mon, Mar 11, 2002 at 02:05:36PM +0100, kurt_kayser(a)gmx.de wrote: > > > We all know martians such as: RFC-1918-space, default, > localhost and > > > Multicast Space. But it's very hard to filter correctly > on address- > > > space that's currently handed out by the RIRs. If there could be > > > a database run - say in a weekly interval - which could generate > > > the 'empty' space blocks in a list - which could again > used to filter > > > against. > > > > > > Any supporters for this idea? > > > > I'm in favour of it. A list of official non-allocated ranges and > > maybe also a list of official non-allocated AS numbers. > > > > Gert Doering > > -- NetMaster > > -- > > Total number of prefixes smaller than registry allocations: 73385 > > (73032) > > > > SpaceNet AG Mail: netmaster(a)Space.Net > > Joseph-Dollinger-Bogen 14 Tel : +49-89-32356-0 > > 80807 Muenchen Fax : +49-89-32356-299 > > > > -- > GMX - Die Kommunikationsplattform im Internet. > http://www.gmx.net >

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RIR-Administrative IP-range server
by kurt_kayser＠gmx.de 11 Mar '02

11 Mar '02

Hi Gert, thanks for your fast support :) > On Mon, Mar 11, 2002 at 02:05:36PM +0100, kurt_kayser(a)gmx.de wrote: > > We all know martians such as: RFC-1918-space, default, localhost and > > Multicast Space. But it's very hard to filter correctly on address- > > space that's currently handed out by the RIRs. If there could be > > a database run - say in a weekly interval - which could generate > > the 'empty' space blocks in a list - which could again used to filter > > against. > > > > Any supporters for this idea? > > I'm in favour of it. A list of official non-allocated ranges and > maybe also a list of official non-allocated AS numbers. It could also be automated - similar to the AS 7777 which announced spammer-addresses. Some pre-defined communities and a special eBGP peering session to the RIR ? I could be a further sevice provided by the RIRs to their contributors to provide them with an 'administrative IP-range' Server - which could be used to withdraw or announce IP-blocks (when they become used = handed out or unused, when given back due to renumbering, take-overs or company) So like an inverse announcement logic: used block are in the public table and unused blocks are controlled by the RIR-Session. Regards, Kurt -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

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(no subject)
by kurt_kayser＠gmx.de 11 Mar '02

11 Mar '02

Hello Routing-WG, since it's more and more difficult to determine, which IP-space is used correctly in the Routing table, is there any chance to setup an easy-retrievable page (say via HTTP or FTP) to view current unallocated IP-space. We all know martians such as: RFC-1918-space, default, localhost and Multicast Space. But it's very hard to filter correctly on address- space that's currently handed out by the RIRs. If there could be a database run - say in a weekly interval - which could generate the 'empty' space blocks in a list - which could again used to filter against. Any supporters for this idea? Regards, Kurt Kayser -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net

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The Cidr Report
by CIDR Report 09 Mar '02

09 Mar '02

This is an auto-generated mail on Fri Mar 8 23:00:00 PST 2002 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 08Mar02 0) General Status Table History ------------- Date Prefixes 010302 106896 020302 107000 030302 107010 040302 107088 050302 107144 060302 107315 070302 107121 080302 107198 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 10.1.1.1/32 from AS(65301) *** Bogus 96.0.0.0/20 from AS3549 AS Summary ---------- Number of ASes in routing system: 12561 Number of ASes announcing only one prefix: 7642 (4326 cidr, 3316 classful) Largest number of cidr routes: 747 announced by AS701 Largest number of classful routes: 1399 announced by AS701 1) Gains by aggregating at the origin AS level --- 08Mar02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1399 1135 264 18.9% UUNET Technologies, Inc. AS1221 1137 880 257 22.6% Telstra Pty Ltd AS17557 232 98 134 57.8% Pakistan Telecom AS16473 198 77 121 61.1% Bell South AS7018 803 685 118 14.7% AT&T AS6595 174 60 114 65.5% DoD Education Activity Network As AS852 445 334 111 24.9% Telus Advanced Communications AS4151 254 149 105 41.3% USDA AS705 303 200 103 34.0% UUNET Technologies, Inc. AS7046 348 246 102 29.3% UUNET Technologies, Inc. AS577 291 195 96 33.0% Bell Advanced Communications Inc. AS19632 94 9 85 90.4% Metropolis Intercom S.A. AS2048 185 105 80 43.2% State of Louisiana AS12302 114 35 79 69.3% MobiFon S.A. AS9051 100 24 76 76.0% INCONET Autonomous System AS4323 422 347 75 17.8% Time Warner Communications, Inc. AS4755 219 146 73 33.3% Videsh Sanchar Nigam Ltd. Autonom AS1239 485 413 72 14.8% Sprint AS7303 118 53 65 55.1% Telecom Argentina Stet-France Tel AS3908 329 264 65 19.8% Supernet, Inc. AS16814 78 16 62 79.5% NSS, S.A. AS3464 157 97 60 38.2% Alabama SuperComputer Network AS724 214 156 58 27.1% DLA Systems Automation Center AS10620 79 21 58 73.4% TVCABLE BOGOTA AS1 478 420 58 12.1% BBN Planet AS16758 63 6 57 90.5% IKON Office Solutions AS19834 63 8 55 87.3% NetForce, Inc. AS702 592 539 53 9.0% UUNET Technologies, Inc. AS226 144 91 53 36.8% Los Nettos AS209 307 254 53 17.3% Qwest Total 54046 42027 12019 22.2% For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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Weekly Routing Table Report
by Routing Table Analysis 08 Mar '02

08 Mar '02

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 For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 08 Mar, 2002 Analysis Summary ---------------- BGP routing table entries examined: 109552 Prefixes after maximum aggregation: 72183 Unique aggregates announced to Internet: 51996 Total ASes present in the Internet Routing Table: 12692 Origin-only ASes present in the Internet Routing Table: 10991 Origin ASes announcing only one prefix: 4803 Transit ASes present in the Internet Routing Table: 1701 Transit-only ASes present in the Internet Routing Table: 56 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 7 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 15 Number of addresses announced to Internet: 1167658920 Equivalent to 69 /8s, 153 /16s and 15 /24s Percentage of available address space announced: 31.5 Percentage of allocated address space announced: 59.6 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 73385 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 17921 Total APNIC prefixes after maximum aggregation: 10655 Prefixes being announced from the APNIC address blocks: 16437 Unique aggregates announced from the APNIC address blocks: 9996 APNIC Region origin ASes present in the Internet Routing Table: 1455 APNIC Region origin ASes announcing only one prefix: 476 APNIC Region transit ASes present in the Internet Routing Table: 255 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 81482560 Equivalent to 4 /8s, 219 /16s and 83 /24s Percentage of available APNIC address space announced: 60.2 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73350 Total ARIN prefixes after maximum aggregation: 47375 Prefixes being announced from the ARIN address blocks: 51778 Unique aggregates announced from the ARIN address blocks: 16246 ARIN Region origin ASes present in the Internet Routing Table: 7518 ARIN Region origin ASes announcing only one prefix: 2351 ARIN Region transit ASes present in the Internet Routing Table: 766 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 189973956 Equivalent to 11 /8s, 82 /16s and 197 /24s Percentage of available ARIN address space announced: 70.8 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 18281 Total RIPE prefixes after maximum aggregation: 14153 Prefixes being announced from the RIPE address blocks: 15019 Unique aggregates announced from the RIPE address blocks: 10004 RIPE Region origin ASes present in the Internet Routing Table: 3662 RIPE Region origin ASes announcing only one prefix: 1976 RIPE Region transit ASes present in the Internet Routing Table: 669 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 107343392 Equivalent to 6 /8s, 101 /16s and 238 /24s Percentage of available RIPE address space announced: 71.1 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1299 1229 958 Telstra Pty Ltd 4538 462 1162 16 China Education and Research 2907 408 1959 372 SINET Japan 703 403 333 313 UUNET Technologies, Inc. 2764 385 360 361 connect.com.au pty ltd 9394 302 113 4 CHINA RAILWAY Internet(CRNET) 7474 295 289 200 Optus Communications Pty Ltd 4755 291 111 88 Videsh Sanchar Nigam Ltd. Aut 4134 274 1962 97 Data Communications Bureau 9443 273 44 63 Primus Telecommunications 17557 233 15 100 Pakistan Telecom 4766 213 1521 147 Korea Internet Exchange for " 7539 165 237 158 TANet2, sponsored by NSC, TAI 4804 148 84 68 Microplex PTY LTD 9768 147 385 89 Korea Telecom 9583 141 32 5 Satyam Infoway Ltd., 4713 127 914 104 NTT Communications Corporatio 7657 123 22 86 The Internet Group Limited 4780 117 186 40 Digital United Inc. 17676 117 1872 17 XTAGE CORPORATION RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1041 2631 852 UUNET Technologies, Inc. 3301 396 924 350 TeliaNet Sweden 3215 261 570 157 France Telecom / &Equant 1257 236 487 232 SWIPnet Swedish IP Network 680 231 2147 230 DFN-IP service G-WiN 5515 216 697 173 Sonera Finland Autonomous Sys 5400 200 83 94 Concert European Core Network 3320 196 1964 171 Deutsche Telekom AG 786 182 1874 182 The JANET IP Service 8708 158 23 147 Romania Data Systems S.A. 719 132 289 118 LANLINK autonomous system 2856 131 790 120 BTnet UK Regional network 3303 124 579 124 Swisscom Ltd 12302 119 7 40 MobiFon S.A. 3269 116 693 70 TELECOM ITALIA 8297 115 37 65 Teleglobe Autonomous System i 517 101 226 99 KPNQwest Germany GmbH 9051 101 6 25 INCONET Autonomous System 2874 96 100 36 Global One Services AB 5511 91 192 79 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2140 8408 1539 UUNET Technologies, Inc. 7018 1209 7495 910 AT&T 3908 847 1659 480 Supernet, Inc. 1 836 8123 610 BBN Planet 1239 791 3381 622 Sprint 4323 639 435 252 Time Warner Communications, I 852 633 1128 414 Telus Advanced Communications 7046 626 835 410 UUNET Technologies, Inc. 209 545 1976 313 Qwest 7132 514 541 157 Southwestern Bell Internet Se 3549 478 843 243 Global Crossing 690 437 66 284 Merit Network 2914 422 2176 418 Verio, Inc. 2149 379 209 315 Performance Systems, Inc. 7843 379 305 50 Adelphia Corp. 705 369 114 260 UUNET Technologies, Inc. 3741 344 731 235 The Internet Solution 2386 337 356 192 AT&T Data Communications Serv 6197 330 215 168 BellSouth Network Solutions, 3561 325 2169 292 Cable & Wireless USA Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 462 446 China Education and Research 4323 639 387 Time Warner Communications, I 3908 847 367 Supernet, Inc. 7132 514 357 Southwestern Bell Internet Se 1221 1299 341 Telstra Pty Ltd 7843 379 329 Adelphia Corp. 7018 1209 299 AT&T 9394 302 298 CHINA RAILWAY Internet(CRNET) 4151 306 290 USDA 6198 309 276 BellSouth Network Solutions, 11371 270 264 Rhythms NetConnections 6347 315 237 SAVVIS Communications Corpora 3549 478 235 Global Crossing 209 545 232 Qwest 7029 243 228 Alltel Information Services, 1 836 226 BBN Planet 852 633 219 Telus Advanced Communications 7046 626 216 UUNET Technologies, Inc. 9443 273 210 Primus Telecommunications 4355 242 205 EarthLink, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 23336 UNALLOCATED 65.163.175.0/24 701 UUNET Technologies, 23336 UNALLOCATED 65.166.167.0/24 701 UUNET Technologies, 23336 UNALLOCATED 65.171.130.0/24 701 UUNET Technologies, 23336 UNALLOCATED 65.222.19.0/24 701 UUNET Technologies, 23339 UNALLOCATED 66.181.32.0/20 701 UUNET Technologies, 23336 UNALLOCATED 204.182.49.0/24 701 UUNET Technologies, 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 96.0.0.0/20 3549 Global Crossing 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.235.0.0/16 6025 US DOD NIC Unregistered 189.186.184.0/24 4471 Michigan Internet Cooperative 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:5 /10:8 /11:14 /12:35 /13:88 /14:232 /15:404 /16:7175 /17:1381 /18:2534 /19:7385 /20:6887 /21:4882 /22:7454 /23:9124 /24:60935 /25:228 /26:266 /27:120 /28:90 /29:111 /30:132 /31:0 /32:43 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1381 2140 UUNET Technologies, Inc. 1221 1156 1299 Telstra Pty Ltd 702 661 1041 UUNET Technologies, Inc. 7018 629 1209 AT&T 3908 583 847 Supernet, Inc. 4323 510 639 Time Warner Communications, I 1239 452 791 Sprint 7046 442 626 UUNET Technologies, Inc. 1 433 836 BBN Planet 690 433 437 Merit Network 852 388 633 Telus Advanced Communications 209 358 545 Qwest 2764 341 385 connect.com.au pty ltd 3549 341 478 Global Crossing 703 325 403 UUNET Technologies, Inc. 705 317 369 UUNET Technologies, Inc. 9394 289 302 CHINA RAILWAY Internet(CRNET) 2149 287 379 Performance Systems, Inc. 6197 279 330 BellSouth Network Solutions, 7066 272 301 Virginia Polytechnic Institut Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 9:1 12:485 13:10 15:1 17:5 20:2 24:760 25:1 32:68 38:9 40:6 44:1 57:15 61:283 62:171 63:1882 64:1149 65:1063 66:816 67:52 68:5 80:213 81:5 128:63 129:120 130:23 131:74 132:11 133:3 134:125 135:10 136:251 137:102 138:195 139:48 140:185 141:61 142:87 143:37 144:143 145:12 146:217 147:164 148:130 149:91 150:41 151:49 152:343 153:33 154:8 155:90 156:75 157:118 158:73 159:118 160:23 161:55 162:140 163:118 164:92 165:118 166:224 167:186 168:119 169:49 170:287 171:2 189:1 192:5435 193:2207 194:2064 195:800 196:429 198:3678 199:3232 200:2363 201:1 202:3041 203:4543 204:3321 205:2174 206:2507 207:2627 208:2559 209:2781 210:543 211:196 212:870 213:581 214:9 215:18 216:2976 217:441 218:21 End of report

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