March 2002 - routing-wg - mailman.ripe.net

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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The Cidr Report
by CIDR Report 02 Mar '02

02 Mar '02

This is an auto-generated mail on Fri Mar 1 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 01Mar02 0) General Status Table History ------------- Date Prefixes 220202 106236 230202 106385 240202 106326 250202 106519 260202 106454 270202 106725 280202 106799 010302 106896 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 96.0.0.0/20 from AS3549 AS Summary ---------- Number of ASes in routing system: 12522 Number of ASes announcing only one prefix: 7615 (4306 cidr, 3309 classful) Largest number of cidr routes: 769 announced by AS701 Largest number of classful routes: 1402 announced by AS701 1) Gains by aggregating at the origin AS level --- 01Mar02 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS701 1402 1138 264 18.8% UUNET Technologies, Inc. AS1221 1140 883 257 22.5% Telstra Pty Ltd AS17557 224 96 128 57.1% Pakistan Telecom AS16473 198 77 121 61.1% Bell South AS7018 801 684 117 14.6% AT&T AS6595 162 57 105 64.8% DoD Education Activity Network As AS4151 255 150 105 41.2% USDA AS705 307 203 104 33.9% UUNET Technologies, Inc. AS852 432 329 103 23.8% Telus Advanced Communications AS7046 346 244 102 29.5% UUNET Technologies, Inc. AS577 288 192 96 33.3% Bell Advanced Communications Inc. AS19632 94 9 85 90.4% Metropolis Intercom S.A. AS12302 114 32 82 71.9% MobiFon S.A. AS2048 186 105 81 43.5% State of Louisiana AS1239 488 409 79 16.2% Sprint AS4755 226 150 76 33.6% Videsh Sanchar Nigam Ltd. Autonom AS4323 424 350 74 17.5% Time Warner Communications, Inc. AS3908 333 266 67 20.1% Supernet, Inc. AS7303 117 53 64 54.7% Telecom Argentina Stet-France Tel AS3464 157 97 60 38.2% Alabama SuperComputer Network AS724 218 159 59 27.1% DLA Systems Automation Center AS10620 79 21 58 73.4% TVCABLE BOGOTA AS16758 63 6 57 90.5% IKON Office Solutions AS226 145 89 56 38.6% Los Nettos AS1 473 417 56 11.8% BBN Planet AS19834 63 8 55 87.3% NetForce, Inc. AS9051 75 22 53 70.7% INCONET Autonomous System AS703 269 217 52 19.3% UUNET Technologies, Inc. AS702 619 567 52 8.4% UUNET Technologies, Inc. AS2149 301 249 52 17.3% Performance Systems, Inc. Total 54098 42109 11989 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 01 Mar '02

01 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 01 Mar, 2002 Analysis Summary ---------------- BGP routing table entries examined: 109166 Prefixes after maximum aggregation: 72127 Unique aggregates announced to Internet: 51877 Total ASes present in the Internet Routing Table: 12656 Origin-only ASes present in the Internet Routing Table: 10956 Origin ASes announcing only one prefix: 4788 Transit ASes present in the Internet Routing Table: 1700 Transit-only ASes present in the Internet Routing Table: 57 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: 9 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: 1170537896 Equivalent to 69 /8s, 196 /16s and 253 /24s Percentage of available address space announced: 31.6 Percentage of allocated address space announced: 59.8 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 73032 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 17792 Total APNIC prefixes after maximum aggregation: 10648 Prefixes being announced from the APNIC address blocks: 16359 Unique aggregates announced from the APNIC address blocks: 9952 APNIC Region origin ASes present in the Internet Routing Table: 1456 APNIC Region origin ASes announcing only one prefix: 480 APNIC Region transit ASes present in the Internet Routing Table: 253 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 80235584 Equivalent to 4 /8s, 200 /16s and 76 /24s Percentage of available APNIC address space announced: 59.3 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: 73100 Total ARIN prefixes after maximum aggregation: 47396 Prefixes being announced from the ARIN address blocks: 51620 Unique aggregates announced from the ARIN address blocks: 16248 ARIN Region origin ASes present in the Internet Routing Table: 7494 ARIN Region origin ASes announcing only one prefix: 2343 ARIN Region transit ASes present in the Internet Routing Table: 769 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 190060100 Equivalent to 11 /8s, 84 /16s and 22 /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: 18270 Total RIPE prefixes after maximum aggregation: 14083 Prefixes being announced from the RIPE address blocks: 15001 Unique aggregates announced from the RIPE address blocks: 10014 RIPE Region origin ASes present in the Internet Routing Table: 3648 RIPE Region origin ASes announcing only one prefix: 1965 RIPE Region transit ASes present in the Internet Routing Table: 665 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 107107488 Equivalent to 6 /8s, 98 /16s and 84 /24s Percentage of available RIPE address space announced: 70.9 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 1298 1229 959 Telstra Pty Ltd 4538 457 1162 16 China Education and Research 2907 408 1975 371 SINET Japan 703 397 353 307 UUNET Technologies, Inc. 2764 385 360 361 connect.com.au pty ltd 7474 298 289 203 Optus Communications Pty Ltd 4755 297 111 86 Videsh Sanchar Nigam Ltd. Aut 4134 270 1874 98 Data Communications Bureau 9443 270 44 62 Primus Telecommunications 9394 263 112 3 CHINA RAILWAY Internet(CRNET) 17557 228 15 99 Pakistan Telecom 4766 211 1393 147 Korea Internet Exchange for " 4804 148 84 68 Microplex PTY LTD 9768 147 385 89 Korea Telecom 9583 142 32 5 Satyam Infoway Ltd., 7539 134 215 131 TANet2, sponsored by NSC, TAI 4713 127 914 104 NTT Communications Corporatio 7657 122 22 85 The Internet Group Limited 4780 120 186 40 Digital United Inc. 17676 115 1840 17 XTAGE CORPORATION RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1062 2618 856 UUNET Technologies, Inc. 3301 397 924 351 TeliaNet Sweden 3215 259 570 156 France Telecom / &Equant 1257 244 487 240 SWIPnet Swedish IP Network 680 231 2147 230 DFN-IP service G-WiN 5515 217 713 174 Sonera Finland Autonomous Sys 5400 201 82 93 Concert European Core Network 3320 195 1964 171 Deutsche Telekom AG 786 181 1858 181 The JANET IP Service 719 164 289 119 LANLINK autonomous system 8708 161 22 147 Romania Data Systems S.A. 2856 131 790 120 BTnet UK Regional network 3303 123 577 123 Swisscom Ltd 12302 118 7 36 MobiFon S.A. 3269 117 693 71 TELECOM ITALIA 8297 114 40 65 Teleglobe Autonomous System i 517 100 226 98 KPNQwest Germany GmbH 2874 95 100 35 Global One Services AB 5511 89 192 78 France Telecom 5536 89 13 25 Internet Egypt Network ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2176 8501 1518 UUNET Technologies, Inc. 7018 1202 7492 903 AT&T 3908 849 1660 477 Supernet, Inc. 1 824 8103 598 BBN Planet 1239 801 3364 623 Sprint 4323 644 435 257 Time Warner Communications, I 7046 644 838 421 UUNET Technologies, Inc. 852 618 1119 408 Telus Advanced Communications 209 536 2007 313 Qwest 3549 478 844 242 Global Crossing 7132 456 511 165 Southwestern Bell Internet Se 2914 446 2144 413 Verio, Inc. 690 439 67 285 Merit Network 7843 382 302 48 Adelphia Corp. 705 377 117 267 UUNET Technologies, Inc. 2149 368 208 306 Performance Systems, Inc. 3741 344 731 235 The Internet Solution 2386 334 355 191 AT&T Data Communications Serv 3561 334 2171 299 Cable & Wireless USA 6197 326 214 166 BellSouth Network Solutions, Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 457 441 China Education and Research 4323 644 387 Time Warner Communications, I 3908 849 372 Supernet, Inc. 1221 1298 339 Telstra Pty Ltd 7843 382 334 Adelphia Corp. 7018 1202 299 AT&T 7132 456 291 Southwestern Bell Internet Se 4151 306 290 USDA 6198 307 274 BellSouth Network Solutions, 11371 278 272 Rhythms NetConnections 9394 263 260 CHINA RAILWAY Internet(CRNET) 6347 315 237 SAVVIS Communications Corpora 3549 478 236 Global Crossing 7029 244 229 Alltel Information Services, 1 824 226 BBN Planet 7046 644 223 UUNET Technologies, Inc. 209 536 223 Qwest 4755 297 211 Videsh Sanchar Nigam Ltd. Aut 852 618 210 Telus Advanced Communications 9443 270 208 Primus Telecommunications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 23309 UNALLOCATED 209.79.154.0/23 2150 California State Uni 23309 UNALLOCATED 209.79.156.0/23 2150 California State Uni 23309 UNALLOCATED 209.132.144.0/24 2150 California State Uni 23309 UNALLOCATED 209.232.36.0/22 2150 California State Uni 65534 PRIVATE 209.242.165.32/27 195 San Diego Supercompu 65534 PRIVATE 209.242.166.0/26 195 San Diego Supercompu 65534 PRIVATE 209.242.166.72/29 195 San Diego Supercompu 65534 PRIVATE 209.242.166.80/28 195 San Diego Supercompu 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 /9:6 /10:8 /11:12 /12:34 /13:88 /14:233 /15:404 /16:7167 /17:1377 /18:2530 /19:7351 /20:6858 /21:4854 /22:7425 /23:9095 /24:60760 /25:214 /26:257 /27:123 /28:93 /29:93 /30:127 /31:0 /32:38 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1410 2176 UUNET Technologies, Inc. 1221 1154 1298 Telstra Pty Ltd 702 685 1062 UUNET Technologies, Inc. 7018 623 1202 AT&T 3908 588 849 Supernet, Inc. 4323 515 644 Time Warner Communications, I 1239 465 801 Sprint 7046 459 644 UUNET Technologies, Inc. 690 435 439 Merit Network 1 429 824 BBN Planet 852 375 618 Telus Advanced Communications 209 351 536 Qwest 2764 341 385 connect.com.au pty ltd 3549 340 478 Global Crossing 703 322 397 UUNET Technologies, Inc. 705 322 377 UUNET Technologies, Inc. 2149 279 368 Performance Systems, Inc. 6197 275 326 BellSouth Network Solutions, 7066 273 302 Virginia Polytechnic Institut 11371 272 278 Rhythms NetConnections Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 9:1 12:489 13:10 15:1 17:5 20:2 24:778 25:1 32:68 38:9 40:6 44:1 57:15 61:237 62:175 63:1878 64:1130 65:1052 66:735 67:49 68:7 80:208 81:4 128:62 129:123 130:23 131:56 132:11 133:3 134:127 135:10 136:250 137:101 138:143 139:48 140:176 141:62 142:82 143:37 144:151 145:13 146:217 147:163 148:148 149:91 150:41 151:48 152:346 153:31 154:7 155:89 156:75 157:119 158:79 159:116 160:23 161:55 162:140 163:117 164:91 165:115 166:223 167:184 168:118 169:49 170:272 171:2 189:1 192:5425 193:2189 194:2090 195:788 196:432 198:3727 199:3233 200:2368 201:1 202:3037 203:4533 204:3317 205:2172 206:2515 207:2618 208:2562 209:2791 210:550 211:196 212:891 213:571 214:9 215:18 216:2949 217:457 218:21 End of report

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