The Cidr Report
This report has been generated at Fri Aug 31 21:14:10 2007 AEST.
The report analyses the BGP Routing Table of AS2.0 router
and generates a report on aggregation potential within the table.
Check http://www.cidr-report.org for a current version of this report.
Recent Table History
Date PrefixesCIDR Agg
24-08-07228272 149302
25-08-07233150 149937
26-08-07233142 150250
27-08-07233479 150700
28-08-07233323 151020
29-08-07233577 149431
30-08-07233841 150016
31-08-07233216 150935
AS Summary
26201 Number of ASes in routing system
11053 Number of ASes announcing only one prefix
1490 Largest number of prefixes announced by an AS
AS7018 : ATT-INTERNET4 - ATT WorldNet Services
89094912 Largest address span announced by an AS (/32s)
AS721 : DISA-ASNBLK - 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').
--- 31Aug07 ---
ASnumNetsNow NetsAggr NetGain % Gain Description
Table 233077 1509308214735.2% All ASes
AS4755 1346 402 94470.1% VSNL-AS Videsh Sanchar Nigam
Ltd. Autonomous System
AS18566 1022 108 91489.4% COVAD - Covad Communications
Co.
AS4323 1319 432 88767.2% TWTC - Time Warner Telecom,
Inc.
AS11492 1137 344 79369.7% CABLEONE - CABLE ONE
AS6478 1129 354 77568.6% ATT-INTERNET3 - ATT WorldNet
Services
AS4134 1071 337 73468.5% CHINANET-BACKBONE
No.31,Jin-rong Street
AS22773 763 76 68790.0% CCINET-2 - Cox Communications
Inc.
AS9498 996 400 59659.8% BBIL-AP BHARTI BT INTERNET
LTD.
AS19262 776 227 54970.7% VZGNI-TRANSIT - Verizon
Internet Services Inc.
AS17488 796 284 51264.3% HATHWAY-NET-AP Hathway IP Over
Cable Internet
AS18101 594 93 50184.3% RIL-IDC Reliance Infocom Ltd
Internet Data Centre,
AS8151 905 405 50055.2% Uninet S.A. de C.V.
AS7545 732 233 49968.2% TPG-INTERNET-AP TPG Internet
Pty Ltd
AS7018 1490 1013 47732.0% ATT-INTERNET4 - ATT WorldNet
Services
AS15270 574 100 47482.6% AS-PAETEC-NET - PaeTec
Communications, Inc.
AS19916 568 101 46782.2% ASTRUM-0001 - OLM LLC
AS2386 1214 751 46338.1% INS-AS - ATT Data
Communications Services
AS6197 1026 574 45244.1% BATI-ATL - BellSouth Network
Solutions, Inc
AS4812 548 106 44280.7% CHINANET-SH-AP China Telecom
(Group)
AS17676 503 64 43987.3% JPNIC-JP-ASN-BLOCK Japan
Network Information Center
AS4766 803 378 42552.9% KIXS-AS-KR Korea Telecom
AS9443 473 82 39182.7% INTERNETPRIMUS-AS-AP Primus
Telecommunications
AS9583 1132 768 36432.2% SIFY-AS-IN Sify Limited
AS4808 482 119 36375.3% CHINA169-BJ CNCGROUP IP
network China169 Beijing
Province Network
AS7011 913 554 35939.3% FRONTIER-AND-CITIZENS -
Frontier Communications of
America, Inc.
AS4668 516 168 34867.4% LGNET-AS-KR LG CNS
AS16814 426 84 34280.3% NSS S.A.
AS16852 402 75 32781.3% BROADWING-FOCAL - Broadwing
Communications Services, Inc.
AS33588 458 144 31468.6% BRESNAN-AS - Bresnan
Communications, LLC.
AS577574
BGP Update Report
BGP Update Report Interval: 30-Jul-07 -to- 30-Aug-07 (32 days) Observation Point: BGP Peering with AS2.0 TOP 20 Unstable Origin AS Rank ASNUpds % Upds/PfxAS-Name 1 - AS9583 162315 2.2% 137.2 -- SIFY-AS-IN Sify Limited 2 - AS14906 78389 1.1% 15677.8 -- 3 - AS683778263 1.1% 698.8 -- SWISSCOM-TRANSIT-AS Swisscom Solutions AG 4 - AS462177868 1.1% 526.1 -- UNSPECIFIED UNINET-TH 5 - AS24731 66260 0.9%1743.7 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 6 - AS14201 60057 0.8%6005.7 -- 7 - AS701851034 0.7% 33.1 -- ATT-INTERNET4 - ATT WorldNet Services 8 - AS13285 45746 0.6%6535.1 -- OPALTELECOM-AS Opal Telecom 9 - AS17974 42293 0.6% 107.6 -- TELKOMNET-AS2-AP PT TELEKOMUNIKASI INDONESIA 10 - AS30850 40792 0.6% 20396.0 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 11 - AS754537504 0.5% 49.3 -- TPG-INTERNET-AP TPG Internet Pty Ltd 12 - AS749137355 0.5% 313.9 -- PI-PH-AS-AP PI-PHILIPINES 13 - AS424937059 0.5% 261.0 -- LILLY-AS - Eli Lilly and Company 14 - AS237 34922 0.5% 204.2 -- MERIT-AS-14 - Merit Network Inc. 15 - AS578634805 0.5% 204.7 -- UPRENET - University of Puerto Rico 16 - AS876434498 0.5% 20.6 -- TEOLTAB TEO LT AB Autonomous System 17 - AS27289 34352 0.5% 34352.0 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 18 - AS702 34020 0.5% 51.7 -- AS702 Verizon Business EMEA - Commercial IP service provider in Europe 19 - AS815133282 0.5% 35.2 -- Uninet S.A. de C.V. 20 - AS12975 32562 0.5% 664.5 -- PALTEL-AS PALTEL Autonomous System TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASNUpds % Upds/PfxAS-Name 1 - AS27289 34352 0.5% 34352.0 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 2 - AS22072 31744 0.4% 31744.0 -- 3 - AS30850 40792 0.6% 20396.0 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 4 - AS26829 19646 0.3% 19646.0 -- YKK-USA - YKK USA,INC 5 - AS14906 78389 1.1% 15677.8 -- 6 - AS151268039 0.1%8039.0 -- ASMC - American Suzuki Motor Corporation 7 - AS13285 45746 0.6%6535.1 -- OPALTELECOM-AS Opal Telecom 8 - AS430436523 0.1%6523.0 -- INTERKOM-AS Interkom Sp. z o.o. 9 - AS14201 60057 0.8%6005.7 -- 10 - AS30707 13209 0.2%4403.0 -- 11 - AS213488010 0.1%4005.0 -- KOPTERIFI KOPTERIFI is autonomous system. Located in Vammala Finland 12 - AS208163739 0.1%3739.0 -- IIP-NET-AS20816 Science and Society Telecomm Center 13 - AS303753392 0.1%3392.0 -- TEVA-NA - Teva Pharmaceuticals USA, INC 14 - AS394083111 0.0%3111.0 -- CZ-ETHERNET AVI ethernet.cz 15 - AS41688 17499 0.2%2916.5 -- COSMOFON-AS AS for Cosmofon 16 - AS13620 31519 0.4%2865.4 -- ASN-ELAN - Elan Communications, Inc. 17 - AS403592511 0.0%2511.0 -- SOUTHEASTERNMILLS-ROME - Southeastern Mills, Inc. 18 - AS9660 7411 0.1%2470.3 -- KANNET-AS-AP Telecommunication and ISP company 19 - AS294252028 0.0%2028.0 -- SAKHCOM-AS SAKHCOM-NETWORK AS 20 - AS430462012 0.0%2012.0 -- MSOLS-AS MSOLS LTD TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 221.135.22.0/24 51269 0.7% AS9583 -- SIFY-AS-IN Sify Limited 2 - 62.24.238.0/2445660 0.6% AS13285 -- OPALTELECOM-AS Opal Telecom 3 - 194.110.73.0/24 40772 0.5% AS30850 -- DESMIE-AS Hellenic Trasmission System Operator S.A. 4 - 221.135.253.0/24 39598 0.5% AS9583 -- SIFY-AS-IN Sify Limited 5 - 208.46.32.0/2434352 0.4% AS27289 -- CLEOCOMMUNICATIONS - CLEO COMMUNICATIONS INC 6 - 12.106.30.0/2431744 0.4% AS22072 -- 7 - 117.58.192.0/19 31196 0.4% AS7491 -- PI-PH-AS-AP PI-PHILIPINES 8 - 80.243.64.0/2030257 0.4% AS21332 -- NTC-AS New Telephone Company 9 - 170.65.189.0/24 30077 0.4% AS14201 -- 10 - 170.65.176.0/22 29879 0.4% AS14201 -- 11 - 12.108.254.0/24 19646 0.2% AS26829 -- YKK-USA - YKK USA,INC 12 - 12.27.90.0/24 18102 0.2% AS14906 -- 13 - 12.27.91.0/24 18097 0.2% AS14906 -- 14 - 12.27.88.0/24 14206 0.2% AS14906 -- 15 - 12.27.89.0/24 14116 0.2% AS14906 -- 16 - 12.27.88.0/22 13868 0.2% AS14906 -- 17 - 89.4.131.0/24 13668 0.2% AS24731 -- ASN-NESMA National Engineering Services and Marketing Company Ltd. (NESMA) 18 - 64.95.193.0/2413193 0.2% AS30707 -- 19 - 203.63.26.0/2413133 0.2% AS9747 -- EZINTERNET-AS-AP EZInternet Pty Ltd 20 - 77.247.128.0/20 13119 0.2% AS34034 -- ARCTEL-AS
New version of Multi-Router Looking Glass (MRLG) released *SECURITY FIX*
A new version (v 5.4.1) of the Multi-Router Looking Glass has been released. Version 5.4.1 includes some minor updates I've made over the past year or so and also includes traps to prevent your looking-glass from being used to exploit the recent flaw discussed at http://tinyurl.com/2x8jpx All users of MRLG are strongly encouraged to update to the latest release. The MRLG source code can be found at: http://www.op-sec.us/mrlg/source/ If you have never seen MRLG in action, it is available for use at http://www.op-sec.us/mrlg/
