February 2006 - Test - lists.nanog.org

firewall authentication problem
by Mohsen A. Momeni 04 Feb '06

04 Feb '06

Hi, I have two group of users connected to internet through a firewall for traffic control. Both should be authenticated by firewall through an AAA server before connecting to internet and there are different user policies for different users in firewall. 1) LAN users. 2) Dial-up users which are connected to a router, and are authenticated by an AAA server (for logging in) The problem is that I don't want a second authentication. I want the users logged in, can be automatically authenticated by the firewall. Firewall should somehow know their username to apply the policies. There should be a mapping from IP to username in AAA server. I think it should be a function of the router to send the IP to AAA server after successful authentication. AAA server can be a RADIUS or LDAP server. Is this possible? If yes, please tell me how. Regards,

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Draft Agenda for Dallas
by Susan Harris 03 Feb '06

03 Feb '06

DRAFT Agenda--NANOG36 February 12-15, 2006 Dallas Sunday Activities ----------------- 3:30 - 5:00 p.m. Newcomer Orientation and Reception 5:00 - 6:30 p.m. NANOG Community Meeting Monday Morning General Session ------------------------------ 9:00 a.m. Welcome, Introductions Steve Feldman, CNET Brokaw Price, Yahoo! 9:15 a.m. Searching for DNS Cache Poisoners Duane Wessels, Measurement Factory/CAIDA 9:45 a.m. Clear and Present Increase of AAAA Queries Tsuyoshi Toyono and Katsuyasu Toyama, NTT Labs 10:05 a.m. DNS Infrastructure Distribution Steve Gibbard, PCH 10:35 a.m. BREAK 11:05 a.m. IPv6 Panel: Time for the Transition or Just More GOSIP? Daniel Golding, Burton Group, moderator Joe Houle, AT&T Jared Mauch, NTT America Rob Rockell, Sprint Jason Schiller, UUNET/Verizon Fred Wettling, Bechtel 12:05 p.m. LUNCH (on your own) Monday Afternoon Tutorials and BOFs ----------------------------------- 2:00 - 3:30 p.m. Troubleshooting BGP Level: Introductory Philip Smith, Cisco 2:00 - 3:30 p.m. ISP Security 101 Primer Level: Introductory/Intermediate Barry Greene, Cisco 3:30 - 4:00 p.m. BREAK 4:00 - 5:30 p.m. ISP Security and NSP-SEC BOF XI Danny McPherson, Arbor, Moderator 4:00 - 5:30 p.m. Troubleshooting BGP (cont'd.) Philip Smith, Cisco 4:00 - 5:30 p.m. Overview of QoS for Packet-based IP and MPLS Networks Level: Introductory Paresh Shah, Utpal Mukhopadhyaya, and Arun Sathiamurthi, Cisco Monday Evening -------------- Yahoo! Reception at Eddie Deen's Ranch (downtown Dallas) 6:30 - 11:00 p.m. (Transportation provided) Tuesday Morning General Session ------------------------------- 9:00 a.m. IRR Power Tools--a Utility for Managing Internet Routing Registry Filters Richard Steenbergen, nLayer Communications 9:30 a.m. NVisionIP and VisFlowConnect-IP: Two Tools for Visualizing NetFlows for Security Bill Yurcik, NCSA 10:00 a.m. Flamingo: An Internet Traffic Exploration Tool Manish Karir, Merit 10:20 a.m. BREAK 10:50 a.m. Flooding Attacks by Exploiting Persistent Forwarding Loops Jianhong Xia, Lixin Gao and Teng Fei, University of Massachusetts 11:20 a.m. How Prevalent is Prefix Hijacking on the Internet? Peter Boothe and James Hiebert, Univ. of Oregon; Randy Bush, IIJ 11:40 a.m. OpenBGPD, a New Approach to BGP, and its Implemtation at the DE-CIX Bernhard Kroenung, DE-CIX, and Hennig Brauer, OpenBSD 12:10 p.m. LUNCH (on your own) Tuesday Afternoon Tutorials and BOFs ------------------------------------ 2:00 - 3:30 p.m. L2VPN: Path to Convergence Level: Introductory/Intermediate Muhammad Waris Sagheer and Syed Nawaz, Cisco 2:00 - 3:30 p.m. Peering BOF XI William B. Norton, Equinix, Moderator 3:30 - 4:00 p.m. BREAK 4:00 - 5:30 p.m. Tools BOF Todd Underwood, Renesys, Moderator 4:00 - 5:30 p.m. L2VPN: Path to Convergence (cont'd.) Tuesday Evening --------------- Beer 'n Gear, 5:30-7:30 p.m. Wednesday Morning General Session --------------------------------- 9:00 a.m. v6fix: Wiping the Slate Clean for IPv6 Kenjiro Cho, WIDE Project/IIJ, Ruri Hiromi, WIDE Project/Intec NetCore 9:30 a.m. Research Forum -------------- An Inter-domain Consistency Management Layer Nate Kushman, MIT Responsive Yet Stable Traffic Engineering Srikanth Kandula, MIT 10:15 a.m. Hurricane Katrina: Telecom Infrastructure Impacts, Solutions, and Opportunities Paula Rhea, Verizon 10:45 a.m. BREAK 11:15 a.m. Lightning Talks By You! 12:15 p.m. Closing Remarks Steve Feldman, CNET Susan Harris, Merit

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Modelling a large ISP network with C-BGP
by Olivier Bonaventure 03 Feb '06

03 Feb '06

Dear All, C-BGP is an efficient and open-source simulation tool that allows to simulate the behavior of the intra- and interdomain routing protocols in large ISP networks. C-BGP is able to simulate networks with thousands of routers. A key feature ofco C-BGP compared to other simulators is that it is able to support the complex routing policies that are used by ISPs. Thanks to the support of France Telecom R&D, we have been able to use C-BGP to reproduce the behavior of BGP in a large Tier-1 ISP network. For this analysis, we have developped several tools to automatically convert the BGP configurations of Juniper (JUNOS) and Cisco (IOS) routers, the IGP topology and the BGP routes in the C-BGP format. With these tools, any network operator can easily build a C-BGP model of his/her network. With such a model, it is possible to perform different types of analysis on the ISP network, such as : - predicting the flow of the traffic through the network or determining the traffic matrix based on Netflow data (see article in January issue of ACM SIGCOMM Computer Communication Review) - predicting the impact of adding a new peering link on the BGP routes selected by the routers (see article in Nov/Dec issue of IEEE Network Magazine) - predicting the impact of link or router failures on the ISP network You can obtain C-BGP, the conversion tools and several papers describing the utilization of C-BGP to model an ISP network or compute traffic matrices from : http://cbgp.info.ucl.ac.be The website also contains several examples, such as a complete C-BGP model of the Abilene Network based on their publically available JUNOS configurations files. We believe that C-BGP could be very useful for ISPs willing to optimise the distribution and the selection of the BGP routes in their network. Comments, suggestions and questions from network operators are more than welcome. Best regards, Bruno Quoitin, Sebastien Tandel and Olivier Bonaventure -- CSE Dept. UCL, Belgium - http://www.info.ucl.ac.be/people/OBO/

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Weekly Routing Table Report
by Routing Table Analysis 03 Feb '06

03 Feb '06

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 04 Feb, 2006 Analysis Summary ---------------- BGP routing table entries examined: 180632 Prefixes after maximum aggregation: 100801 Unique aggregates announced to Internet: 87940 Total ASes present in the Internet Routing Table: 21423 Origin-only ASes present in the Internet Routing Table: 18625 Origin ASes announcing only one prefix: 8836 Transit ASes present in the Internet Routing Table: 2798 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 23 Prefixes from unregistered ASNs in the Routing Table: 1 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1487343776 Equivalent to 88 /8s, 167 /16s and 16 /24s Percentage of available address space announced: 40.1 Percentage of allocated address space announced: 59.2 Percentage of available address space allocated: 67.8 Total number of prefixes smaller than registry allocations: 87709 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 37914 Total APNIC prefixes after maximum aggregation: 16015 Prefixes being announced from the APNIC address blocks: 35691 Unique aggregates announced from the APNIC address blocks: 17449 APNIC Region origin ASes present in the Internet Routing Table: 2459 APNIC Region origin ASes announcing only one prefix: 686 APNIC Region transit ASes present in the Internet Routing Table: 380 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 21 Number of APNIC addresses announced to Internet: 211707872 Equivalent to 12 /8s, 158 /16s and 103 /24s Percentage of available APNIC address space announced: 66.2 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 94993 Total ARIN prefixes after maximum aggregation: 56485 Prefixes being announced from the ARIN address blocks: 74275 Unique aggregates announced from the ARIN address blocks: 28409 ARIN Region origin ASes present in the Internet Routing Table: 10479 ARIN Region origin ASes announcing only one prefix: 3910 ARIN Region transit ASes present in the Internet Routing Table: 969 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 285983232 Equivalent to 17 /8s, 11 /16s and 194 /24s Percentage of available ARIN address space announced: 71.0 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 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, 29696-30719, 31744-33791 35840-36863 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 35525 Total RIPE prefixes after maximum aggregation: 23950 Prefixes being announced from the RIPE address blocks: 32560 Unique aggregates announced from the RIPE address blocks: 21870 RIPE Region origin ASes present in the Internet Routing Table: 7596 RIPE Region origin ASes announcing only one prefix: 3977 RIPE Region transit ASes present in the Internet Routing Table: 1262 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 19 Number of RIPE addresses announced to Internet: 230751616 Equivalent to 13 /8s, 192 /16s and 253 /24s Percentage of available RIPE address space announced: 68.8 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839, 38912-39935 RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 10324 Total LACNIC prefixes after maximum aggregation: 3474 Prefixes being announced from the LACNIC address blocks: 8523 Unique aggregates announced from the LACNIC address blocks: 5126 LACNIC Region origin ASes present in the Internet Routing Table: 668 LACNIC Region origin ASes announcing only one prefix: 219 LACNIC Region transit ASes present in the Internet Routing Table: 121 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 25056000 Equivalent to 1 /8s, 126 /16s and 83 /24s Percentage of available LACNIC address space announced: 37.3 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1871 Total AfriNIC prefixes after maximum aggregation: 877 Prefixes being announced from the AfriNIC address blocks: 1235 Unique aggregates announced from the AfriNIC address blocks: 872 AfriNIC Region origin ASes present in the Internet Routing Table: 146 AfriNIC Region origin ASes announcing only one prefix: 44 AfriNIC Region transit ASes present in the Internet Routing Table: 22 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 3041536 Equivalent to 0 /8s, 46 /16s and 105 /24s Percentage of available AfriNIC address space announced: 9.1 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 982 6462 204 CHINANET-BACKBONE 9583 849 109 15 Sify Limited 4755 801 258 64 Videsh Sanchar Nigam Ltd. Aut 4766 710 3927 301 Korea Telecom (KIX) 1221 668 1428 476 Telstra Pty Ltd 9498 519 211 71 BHARTI BT INTERNET LTD. 7545 516 108 70 TPG Internet Pty Ltd 17676 480 6949 104 Softbank BB Corp. 17488 449 27 7 Hathway IP Over Cable Interne 9443 411 94 85 Primus Telecommunications 4802 370 75 161 Wantree Development 2907 338 1763 315 SINET Japan 9929 335 218 50 China Netcom Corp. 7474 330 227 228 SingTel Optus Pty Ltd 18101 328 68 26 Reliance Infocom Ltd Internet 17974 315 77 37 PT TELEKOMUNIKASI INDONESIA 17557 311 25 161 Pakistan Telecom 4780 282 226 16 Digital United Inc. 9837 271 78 169 Powertel Ltd 9800 259 410 67 CHINA UNICOM ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1466 6263 948 AT&T WorldNet Services 4323 1208 720 236 Time Warner Telecom 174 1032 5789 945 Cogent Communications 721 1029 21970 310 DLA Systems Automation Center 6197 987 621 458 BellSouth Network Solutions, 701 949 8064 792 UUNET Technologies, Inc. 18566 901 272 8 Covad Communications 2386 884 501 691 AT&T Data Communications Serv 1239 852 2792 601 Sprint 209 680 3606 537 Qwest 20115 676 565 355 Charter Communications 6198 636 449 238 BellSouth Network Solutions, 11492 628 81 12 Cable One 22773 617 1478 37 Cox Communications, Inc. 19262 612 1768 149 Verizon Global Networks 855 573 243 65 Canadian Research Network 852 570 1092 379 Telus Advanced Communications 19916 563 49 54 OLM LLC 3602 521 127 106 Sprint Canada, Inc. 5668 516 143 24 CenturyTel Internet Holdings, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 587 1954 463 UUNET - Commercial IP service 3301 304 1071 290 TeliaNet Sweden 3352 303 1500 34 Ibernet, Internet Access Netw 3320 280 3477 234 Deutsche Telekom AG 8220 275 474 269 COLT Telecommunications 680 242 2025 239 DFN-IP service G-WiN 3246 228 487 219 Song Networks 8708 222 274 206 Romania Data Systems S.A. 6746 217 85 190 Dynamic Network Technologies, 1257 195 712 173 SWIPnet Swedish IP Network 3269 185 1925 70 TELECOM ITALIA 5515 177 840 125 Sonera Solution Autonomous Sy 8866 175 37 13 Bulgarian Telecommunication C 786 173 1794 173 The JANET IP Service 3215 169 1390 83 France Telecom Transpac 24863 168 38 9 LINKdotNET AS number 5400 167 328 137 BT Ignite European Backbone 3300 165 171 94 AUCS Communications Services 6830 160 669 33 UPC Distribution Services 12479 158 322 5 Uni2 Autonomous System LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 569 1048 217 UniNet S.A. de C.V. 22047 383 142 10 VTR PUNTO NET S.A. 11172 304 110 77 Servicios Alestra S.A de C.V 16814 295 18 7 NSS, S.A. 13999 187 51 26 Mega Cable S.A. de C.V. 14117 184 11 6 Telefonica del Sur S.A. 7303 155 73 19 Telecom Argentina Stet-France 6147 154 126 22 Telefonica Del Peru 11556 130 64 3 Cable-Wireless Panama 19169 123 8 30 Telconet 10481 121 48 8 Prima S.A. 6503 118 148 79 AVANTEL, S.A. 21826 115 15 21 INTERCABLE 5639 112 12 9 Telecommunications Services o 6505 107 88 79 Global One Communicaoes Ltda 18822 99 8 10 TELEFONICA MANQUEHUE 7315 96 6 3 Grupo Rey Moreno 19429 96 52 49 E.T.B. 11311 95 8 23 Sinectis S.A. 4270 92 17 9 Red de Interconexion Universi AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 279 819 234 The Internet Solution 8452 159 60 7 TEDATA 5536 122 8 16 Internet Egypt Network 2018 117 298 103 Tertiary Education Network 15475 102 84 4 Nile Online 2905 74 155 67 The Internetworking Company o 6713 67 71 10 Itissalat Al-MAGHRIB 20928 58 16 2 Noor Advanced Technologies AS 24835 55 34 6 RAYA Telecom - Egypt 5713 38 166 34 Telkom SA Ltd 33774 37 9 28 AS Number for Telecom Algeria 15706 31 8 3 Sudatel Internet Exchange Aut 12455 28 6 5 Jambonet Autonomous system 23889 25 7 10 MAURITIUS TELECOM 8524 23 1 4 AUCEGYPT Autonomous System 16637 23 10 21 Johnnic e-Ventures 10798 22 1 13 Standard Bank of South Africa 8346 21 14 18 SONATEL-AS Autonomous System 21280 21 4 4 Swift Global Kenya Ltd.Is an 12258 17 3 11 Vodacom Internet Company Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 1208 972 Time Warner Telecom 18566 901 893 Covad Communications 9583 849 834 Sify Limited 4134 982 778 CHINANET-BACKBONE 4755 801 737 Videsh Sanchar Nigam Ltd. Aut 721 1029 719 DLA Systems Automation Center 11492 628 616 Cable One 22773 617 580 Cox Communications, Inc. 6197 987 529 BellSouth Network Solutions, 19916 563 509 OLM LLC 855 573 508 Canadian Research Network 5668 516 492 CenturyTel Internet Holdings, 19262 612 463 Verizon Global Networks 9498 519 448 BHARTI BT INTERNET LTD. 7545 516 446 TPG Internet Pty Ltd 7757 461 442 AT&T Broadband 17488 449 442 Hathway IP Over Cable Interne 3602 521 415 Sprint Canada, Inc. 812 438 410 Rogers WAVE 4766 710 409 Korea Telecom (KIX) List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 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 7575 Australian Academic and Rease 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.172.0.0/19 721 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 /8:18 /9:9 /10:8 /11:20 /12:87 /13:199 /14:346 /15:688 /16:8689 /17:2993 /18:5030 /19:11251 /20:12445 /21:10830 /22:13800 /23:15020 /24:98195 /25:334 /26:286 /27:200 /28:62 /29:25 /30:55 /31:3 /32:39 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 884 901 Covad Communications 6197 783 987 BellSouth Network Solutions, 7018 748 1466 AT&T WorldNet Services 9583 668 849 Sify Limited 11492 620 628 Cable One 2386 617 884 AT&T Data Communications Serv 4323 582 1208 Time Warner Telecom 19916 557 563 OLM LLC 4766 514 710 Korea Telecom (KIX) 6198 501 636 BellSouth Network Solutions, 855 445 573 Canadian Research Network 7757 443 461 AT&T Broadband 7011 415 483 Citizens Utilities 5668 402 516 CenturyTel Internet Holdings, 702 373 587 UUNET - Commercial IP service 1239 368 852 Sprint 6517 343 369 Yipes Communications, Inc. 15270 340 368 PaeTec.net -a division of Pae 22773 322 617 Cox Communications, Inc. 812 317 438 Rogers WAVE Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 8:44 12:1633 13:1 15:12 16:3 17:3 18:4 20:43 24:861 25:1 30:2 32:66 38:194 40:54 44:3 47:3 52:4 55:1 56:3 57:34 58:117 59:167 60:179 61:826 62:768 63:1900 64:2970 65:2242 66:3062 67:577 68:665 69:1429 70:293 71:55 72:602 73:23 74:2 80:758 81:584 82:505 83:360 84:343 85:429 86:289 87:162 88:18 89:13 124:11 125:200 128:148 129:170 130:103 131:310 132:33 133:7 134:145 135:46 136:169 137:60 138:182 139:85 140:452 141:132 142:414 143:144 144:224 145:39 146:309 147:135 148:323 149:186 150:114 151:73 152:61 153:102 154:6 155:186 156:90 157:120 158:158 159:180 160:88 161:64 162:218 163:177 164:180 165:196 166:145 167:236 168:471 169:139 170:315 171:12 190:30 192:5760 193:3355 194:2491 195:1744 196:753 198:3897 199:3255 200:4246 201:577 202:6433 203:6773 204:3883 205:2102 206:2432 207:2927 208:1995 209:3534 210:1907 211:804 212:1280 213:1453 214:326 215:40 216:3871 217:1158 218:238 219:137 220:641 221:339 222:146 End of report

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Another day another virus, not that virus the other virus
by Sean Donelan 03 Feb '06

03 Feb '06

The Russian Trading System (stock exchange) was shutdown due to a computer virus (worm, maleware, whatever you want to call it). Not the computer virus the press has been talking about for the last week, but a different computer virus. http://en.rian.ru/business/20060203/43307462.html IT computer experts are perplexed why their anti-virus software didn't stop the computer virus. http://www.kommersant.com/page.asp?id=646216

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The Cidr Report
by cidr-report＠potaroo.net 03 Feb '06

03 Feb '06

This report has been generated at Fri Feb 3 21:47:00 2006 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 27-01-06 176708 117351 28-01-06 177029 117287 29-01-06 176727 117422 30-01-06 177188 117463 31-01-06 177273 117668 01-02-06 178463 117222 02-02-06 177300 117596 03-02-06 178834 117487 AS Summary 21333 Number of ASes in routing system 8850 Number of ASes announcing only one prefix 1450 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 91376384 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - 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'). --- 03Feb06 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 177507 117420 60087 33.9% All ASes AS4323 1202 238 964 80.2% TWTC - Time Warner Telecom AS18566 901 9 892 99.0% COVAD - Covad Communications Co. AS4134 978 253 725 74.1% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1029 312 717 69.7% DLA-ASNBLOCK-AS - DoD Network Information Center AS22773 612 44 568 92.8% CCINET-2 - Cox Communications Inc. AS6197 986 475 511 51.8% BATI-ATL - BellSouth Network Solutions, Inc AS855 573 65 508 88.7% CANET-ASN-4 - Canadian Research Network AS7018 1450 949 501 34.6% ATT-INTERNET4 - AT&T WorldNet Services AS19916 563 65 498 88.5% ASTRUM-0001 - OLM LLC AS7757 461 19 442 95.9% CCCH-AS4 - Comcast Cable Communications Holdings, Inc AS3602 521 107 414 79.5% AS3602-RTI - Rogers Telecom Inc. AS812 438 28 410 93.6% ROGERS-CABLE - Rogers Cable Inc. AS9498 518 123 395 76.3% BBIL-AP BHARTI BT INTERNET LTD. AS6198 636 243 393 61.8% BATI-MIA - BellSouth Network Solutions, Inc AS17676 480 104 376 78.3% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS4766 673 303 370 55.0% KIXS-AS-KR Korea Telecom AS11492 628 263 365 58.1% CABLEONE - CABLE ONE AS17488 449 85 364 81.1% HATHWAY-NET-AP Hathway IP Over Cable Internet AS6467 391 52 339 86.7% ESPIRECOMM - e.spire Communications, Inc. AS4755 648 311 337 52.0% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS15270 362 31 331 91.4% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS22047 380 85 295 77.6% VTR BANDA ANCHA S.A. AS14654 299 13 286 95.7% WAYPORT - Wayport AS18101 325 39 286 88.0% RIL-IDC Reliance Infocom Ltd Internet Data Centre, AS3352 303 34 269 88.8% TELEFONICA-DATA-ESPANA Internet Access Network of TDE AS5668 515 246 269 52.2% AS-5668 - CenturyTel Internet Holdings, Inc. AS6167 338 69 269 79.6% CELLCO-PART - Cellco Partnership AS9929 324 57 267 82.4% CNCNET-CN China Netcom Corp. AS9583 848 595 253 29.8% SIFY-AS-IN Sify Limited AS1239 852 605 247 29.0% SPRINTLINK - Sprint Total 18683 5822 12861 68.8% Top 30 total Possible Bogus Routes 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 64.17.32.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.33.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.17.37.0/24 AS13488 CBWU-13488 - Continental Broadband Florida, Inc DBA WebUnited 64.25.224.0/20 AS12180 INTERNAP-2BLK - Internap Network Services 64.25.224.0/22 AS15083 INFOLINK-MIA-US - Infolink Information Services Inc. 64.38.96.0/19 AS19654 HOSTING-NETWORK - HOSTING-NETWORK, INC. 64.127.128.0/17 AS19654 HOSTING-NETWORK - HOSTING-NETWORK, INC. 66.11.32.0/20 AS6261 VISINET - Visionary Systems, Inc. 66.11.224.0/20 AS3356 LEVEL3 Level 3 Communications 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.51.134.0/24 AS29876 LNTC - Latency LLC 66.96.0.0/20 AS3770 WORLDPATH-AS - WorldPath Internet Services 66.117.0.0/21 AS30033 NHI-NETWORKS - NHI Networks 66.117.8.0/24 AS174 COGENT Cogent/PSI 66.117.9.0/24 AS30033 NHI-NETWORKS - NHI Networks 66.117.16.0/24 AS30033 NHI-NETWORKS - NHI Networks 66.117.18.0/24 AS30033 NHI-NETWORKS - NHI Networks 66.117.20.0/24 AS30085 NHI-COLOCATIONS - New Horizon Collocations 66.117.21.0/24 AS30033 NHI-NETWORKS - NHI Networks 66.117.23.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.25.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.26.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.117.27.0/24 AS31972 EMGINECONCEPT-01 - Emagine Concept, Inc. 66.186.192.0/19 AS19654 HOSTING-NETWORK - HOSTING-NETWORK, INC. 66.187.96.0/24 AS10026 ANC Asia Netcom Corporation 66.187.108.0/24 AS10026 ANC Asia Netcom Corporation 66.187.109.0/24 AS10026 ANC Asia Netcom Corporation 66.216.0.0/18 AS19654 HOSTING-NETWORK - HOSTING-NETWORK, INC. 66.235.158.0/23 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 69.31.151.0/24 AS26627 AS-PILOSOFT - Pilosoft, Inc. 69.39.193.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.195.0/24 AS25973 MZIMA - Mzima Networks, Inc. 69.39.196.0/24 AS25973 MZIMA - Mzima Networks, Inc. 71.6.128.0/19 AS10439 CARI - California Regional Intranet, Inc. 85.129.3.0/24 AS14585 CIFNET - CIFNet, Inc. 85.129.4.0/24 AS14585 CIFNET - CIFNet, Inc. 89.146.0.0/18 AS28685 ASN-ROUTIT Routit BV Rotterdam The Netherlands 90.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project. 90.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project. 91.192.0.0/16 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project. 91.255.248.0/21 AS12654 RIPE-NCC-RIS-AS RIPE NCC RIS Project. 125.213.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 131.64.0.0/12 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 132.0.0.0/10 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 137.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 138.136.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 151.135.0.0/16 AS4763 TELSTRANZ-AS TelstraClear Ltd 158.0.0.0/13 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 163.142.0.0/16 AS2500 JPNIC-ASBLOCK-AP JPNIC 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.72.0.0/16 AS4780 SEEDNET Digital United Inc. 192.72.0.0/18 AS4780 SEEDNET Digital United Inc. 192.72.192.0/18 AS4780 SEEDNET Digital United Inc. 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.88.99.0/24 AS559 SWITCH SWITCH, Swiss Education and Research Network 192.96.36.0/24 AS5713 AFRINIC African Network Information Center 192.96.37.0/24 AS10474 AFRINIC African Network Information Center 192.96.135.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.136.0/23 AS2018 TENET - 1 - The Uninet Project 192.96.140.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.143.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.145.0/24 AS2018 TENET - 1 - The Uninet Project 192.96.177.0/24 AS6083 AFRINIC African Network Information Center 192.96.250.0/24 AS2018 TENET - 1 - The Uninet Project 192.107.104.0/24 AS6458 GUATEL 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP DFN-IP service X-WiN 192.133.6.0/24 AS10282 EQUANT-CEEUR EQUANT AS for Central and Eastern Europe region 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 193.0.246.0/24 AS3303 SWISSCOM Swisscom Solutions Ltd 193.32.19.0/24 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.32.20.0/23 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.36.1.0/24 AS8220 COLT COLT Telecommunications 193.37.69.0/24 AS2856 BT-UK-AS BTnet UK Regional network 193.37.236.0/24 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 193.110.77.0/24 AS3356 LEVEL3 Level 3 Communications 193.110.78.0/24 AS3356 LEVEL3 Level 3 Communications 193.110.79.0/24 AS3356 LEVEL3 Level 3 Communications 194.31.227.0/24 AS21461 TRANSFAIRNET Transfair-net GmbH Krefeld 194.59.176.0/20 AS1273 CW Cable & Wireless 194.153.156.0/24 AS24865 KMITCHELL-AS Keith Mitchell's Network 194.246.72.0/23 AS8893 ARTFILES-AS Artfiles New Media GmbH 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.54.82.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.92.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.222.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.249.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.250.0/24 AS2018 TENET - 1 - The Uninet Project 198.54.251.0/24 AS2018 TENET - 1 - The Uninet Project 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.96.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GT-BELL - Bell Canada 198.163.155.0/24 AS684 MTSAL-ASN - MTS Allstream Inc. 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.9.128.0/17 AS668 ASN-ASNET-NET-AS - Defense Research and Engineering Network 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS27064 DDN-ASNBLK1 - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.153.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS3542 ITSDN-U5 - DISA/UNRRA 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 199.246.116.0/24 AS813 UUNET-AS1 - UUNET Technologies, Inc. 202.9.64.0/19 AS9290 TPN-AS-AP Smart Global Network (M) Sdn Bhd 202.58.113.0/24 AS19161 INNOCOM-TELECOM - INNOCOM TELECOM 202.74.32.0/19 AS9315 CWN-AS-AP Chomanan WorldNet Co., Ltd. 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.253.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.254.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.86.255.0/24 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.90.33.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.40.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.41.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.42.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.43.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.90.44.0/24 AS9830 SWIFTONLINE-AS-AP SWIFT ONLINE BORDER AS 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.131.64.0/19 AS9381 NEWTT-IP-AP Wharf T&T Ltd. 203.13.171.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.62.0.0/17 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 203.78.48.0/20 AS9299 IPG-AS-AP Philippine Long Distance Telephone Company 203.89.134.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.139.0/24 AS17911 BRAINPK-AS-AP Brain Telecommunication Ltd. 203.89.143.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.144.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.145.0/24 AS4637 REACH Reach Network Border AS 203.89.146.0/24 AS4637 REACH Reach Network Border AS 203.89.147.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.148.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.149.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.150.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.151.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.153.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.154.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.158.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.89.159.0/24 AS17557 PKTELECOM-AS-AP Pakistan Telecom 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd 203.111.192.0/20 AS7473 SINGTEL-AS-AP Singapore Telecom 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.108.96.0/19 AS577 BACOM - Bell Canada 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 209.40.192.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.200.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.208.0/21 AS6487 CyberNet de Guatemala S.A. 209.40.216.0/21 AS6487 CyberNet de Guatemala S.A. 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. 209.234.0.0/18 AS3845 STATE-NET - CS&W, Inc. 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.71.224.0/20 AS23527 COTELLIGENCE - Cotelligence, Inc. 216.75.0.0/18 AS10439 CARI - California Regional Intranet, Inc. 216.82.160.0/20 AS20481 CALYX-NL Calyx Internet B.V. Netherlands 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.201.68.0/24 AS13564 BELLSOUTHINTERNATIONL - BellSouth International - Network Services 216.201.69.0/24 AS13564 BELLSOUTHINTERNATIONL - BellSouth International - Network Services 216.201.70.0/24 AS13564 BELLSOUTHINTERNATIONL - BellSouth International - Network Services 216.201.71.0/24 AS13564 BELLSOUTHINTERNATIONL - BellSouth International - Network Services 216.201.72.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.73.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.74.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.75.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.76.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.77.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.78.0/24 AS14709 Telefonica Moviles Panama S.A. 216.201.79.0/24 AS14709 Telefonica Moviles Panama S.A. 216.228.64.0/21 AS6295 WHIDBEY1 - Whidbey Internet Services 216.228.224.0/20 AS13674 VRIS-AS-BLOCK-13661-13675 - Verizon Internet Services Inc. 216.240.240.0/20 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.240.242.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 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

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the great anti-virus conspiracy
by Paul Vixie 02 Feb '06

02 Feb '06

today i saw <http://209.59.135.198/threat-center/eset_threat_blog.php>.

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Re: Modelling a large ISP network with C-BGP
by Gregory Hicks 02 Feb '06

02 Feb '06

> Cc: nanog(a)nanog.org > From: Christian Kuhtz <kuhtzch(a)corp.earthlink.net> > Subject: Re: Modelling a large ISP network with C-BGP > Date: Thu, 2 Feb 2006 17:19:50 -0500 > To: Gregory Hicks <ghicks> > > > On Feb 2, 2006, at 5:02 PM, Gregory Hicks wrote: > > > > >> From: Christian Kuhtz <kuhtzch(a)corp.earthlink.net> > >> Date: Thu, 2 Feb 2006 15:38:57 -0500 > >> > >> On Feb 2, 2006, at 3:34 PM, Alain Hebert wrote: > >>> > >>> I fail to see a usage for smaller ISP that are using BGP only > >>> for peering and OSPF internaly. > >> > >> Why would you need to sim this at small scale? > > > > How about for a net that has 540+ networks? It would be > > interesting to see what happens if you perturb this BEFORE you do > > the perturbation... > > *sigh* > > You just made me speechless. All I can come with is "Well, DUH!" Christian: Honestly, I didn't *mean* to make you speechless! It just happened... What I *meant* to write was ... 540+ SUBnets. We have several /16 addresses and some 35K hosts right now - but still growing... All this is hiding behind one AS... (used to be three ASes) > > *sigh* > ------------------------------------------------------------------- I am perfectly capable of learning from my mistakes. I will surely learn a great deal today. "A democracy is a sheep and two wolves deciding on what to have for lunch. Freedom is a well armed sheep contesting the results of the decision." - Benjamin Franklin "The best we can hope for concerning the people at large is that they be properly armed." --Alexander Hamilton

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Re: Modelling a large ISP network with C-BGP
by Gregory Hicks 02 Feb '06

02 Feb '06

> From: Christian Kuhtz <kuhtzch(a)corp.earthlink.net> > Date: Thu, 2 Feb 2006 15:38:57 -0500 > > On Feb 2, 2006, at 3:34 PM, Alain Hebert wrote: > > > > I fail to see a usage for smaller ISP that are using BGP only > > for peering and OSPF internaly. > > Why would you need to sim this at small scale? How about for a net that has 540+ networks? It would be interesting to see what happens if you perturb this BEFORE you do the perturbation... > > Thanks, > Christian > ------------------------------------------------------------------- Gregory Hicks | Principal Systems Engineer Cadence Design Systems | Direct: 408.576.3609 555 River Oaks Pkwy M/S 6B1 | Fax: 408.894.3400 San Jose, CA 95134 | Internet: ghicks(a)cadence.com I am perfectly capable of learning from my mistakes. I will surely learn a great deal today. "A democracy is a sheep and two wolves deciding on what to have for lunch. Freedom is a well armed sheep contesting the results of the decision." - Benjamin Franklin "The best we can hope for concerning the people at large is that they be properly armed." --Alexander Hamilton

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Re: Modelling a large ISP network with C-BGP
by Todd Underwood 02 Feb '06

02 Feb '06

Alain, On Thu, Feb 02, 2006 at 01:01:27PM -0500, Alain Hebert wrote: > > I'm I alone to find this a bit spammy? It's a free tool that imports real router configs and apparently can scale to simulate very large networks. That seems --operational --useful --noncommercial seems right on-target to me. for the record, renesys wrote the ssfnet (ssfnet.org) simulation framework, so we respect people who do a good job of producing high-quality simulation engines. it is most certainly not easy and if this release is any good, i suspect it will be appreciated by those networks large enough to still have a R&D staff to take advantage of it. t. -- _____________________________________________________________________ todd underwood chief of operations & security renesys - internet intelligence todd(a)renesys.com www.renesys.com

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