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Hotmail / MSN blacklisting policies.
by James Smallacombe 02 Jan '12

02 Jan '12

The IP address of our mail server was recently blacklisted by MSN/Hotmail. When I went through their steps for delisting, it was denied based on "reputation". AFAIK, we have not had a spam problem for several months. When we did it was due to a few accounts having been successfully phished. Since then our customers have been far more savvy and I have not seen the problem. I manually delisted us from all the known BLs back then and all has been ok. A current multi DNSBL lookup only shows 3 out of a couple hundred BLs listing us. You may be familiar with the ones that did (blackholes.five-ten-sg.com for example). No major, reputable, widely used DNSBL lists the IP. I have been doing this for 16 years. It has always been SOP to provide an offending email, with full headers to the complaint recipient, if not in advance of such blacklisting, then at least upon request. They sure require it of me when I report abuse of their servers. They flat out refuse to do this, claiming they have no access to this. I had this same issue with Cloudmark's BL a couple of months ago (which Comcast and other major providers use), so I suspect this is some kind of outsourced blacklist that does a poor job of updating their listings or one of my regular customers is sending out emails that are being incorrectly reported as spam. I have seen the latter happen several times with other servers I've worked with that auto generate legitimate emails of reports that customers pay for, but aggressive filters such as AOL's auto-report as spam (to be fair, AOL is excellent at resolving these). We do have SPF records for our main domains, but no DKIM or other whitelisting/authentication mechanisms. Is this sort of thing going to be widely required?

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Re: Does anybody out there use Authentication Header (AH)?
by David Barak 02 Jan '12

02 Jan '12

It can be used to prevent NAT on an intermediate path, which can be useful under certain circumstances. I have seen it in the wild, both in Internet and private networking contexts. David Barak

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Windows UDP packet generator software?
by Jay Nakamura 31 Dec '11

31 Dec '11

The goal of what I am doing is to test some network convergence impact in a lab with two PCs with windows (Can't run Linux, it would be easier if I could) and switches and/or routers in between. So, I thought there must be some simple utility out there that can just start spewing out UDP packets to the other side at a certain time interval and I can look at packet loss via what arrives on the other side with wireshark on the PC. I found hping but it seems to be outdated and I can't get it to work on my windows boxes. Anyone have any suggestions?

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BGP Update Report
by cidr-report＠potaroo.net 30 Dec '11

30 Dec '11

BGP Update Report Interval: 22-Dec-11 -to- 29-Dec-11 (7 days) Observation Point: BGP Peering with AS131072 TOP 20 Unstable Origin AS Rank ASN Upds % Upds/Pfx AS-Name 1 - AS42116 154161 9.8% 2802.9 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 2 - AS8402 56712 3.6% 38.4 -- CORBINA-AS OJSC "Vimpelcom" 3 - AS9829 48238 3.1% 79.9 -- BSNL-NIB National Internet Backbone 4 - AS17665 46747 3.0% 615.1 -- IN2CABLE-AP AS Number of In2cable.com (India) Ltd. 5 - AS5800 27683 1.8% 96.1 -- DNIC-ASBLK-05800-06055 - DoD Network Information Center 6 - AS12479 24724 1.6% 686.8 -- UNI2-AS France Telecom Espana SA 7 - AS32528 24496 1.6% 12248.0 -- ABBOTT Abbot Labs 8 - AS7552 21085 1.3% 14.9 -- VIETEL-AS-AP Vietel Corporation 9 - AS20632 19816 1.3% 508.1 -- PETERSTAR-AS PeterStar 10 - AS24560 18722 1.2% 18.5 -- AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services 11 - AS5089 17967 1.1% 1382.1 -- NTL Virgin Media Limited 12 - AS19223 12848 0.8% 12848.0 -- NTEGRATED-SOLUTIONS - Ntegrated Solutions 13 - AS2118 11493 0.7% 17.1 -- RELCOM-AS OOO "NPO Relcom" 14 - AS34875 11283 0.7% 60.7 -- YANFES OJSC "Uralsviazinform" 15 - AS47065 10684 0.7% 381.6 -- GENI-BGPMUX - BBN Technologies Corp. - Global Environment for Network Innovations (GENI) 16 - AS39353 10361 0.7% 10361.0 -- PRINCAST-AS Gobierno del Principado de Asturias 17 - AS6072 10328 0.7% 737.7 -- UNISYS-6072 For routing issues, email hostmaster(a)unisys.com 18 - AS1273 9713 0.6% 186.8 -- CW Cable and Wireless Worldwide plc 19 - AS31148 9655 0.6% 23.2 -- FREENET-AS FreeNet ISP 20 - AS17639 9538 0.6% 104.8 -- COMCLARK-AS ComClark Network & Technology Corp. TOP 20 Unstable Origin AS (Updates per announced prefix) Rank ASN Upds % Upds/Pfx AS-Name 1 - AS19223 12848 0.8% 12848.0 -- NTEGRATED-SOLUTIONS - Ntegrated Solutions 2 - AS32528 24496 1.6% 12248.0 -- ABBOTT Abbot Labs 3 - AS39353 10361 0.7% 10361.0 -- PRINCAST-AS Gobierno del Principado de Asturias 4 - AS10209 4859 0.3% 4859.0 -- SYNOPSYS-AS-JP-AP Japan HUB and Data Center 5 - AS17408 3265 0.2% 3265.0 -- ABOVE-AS-AP AboveNet Communications Taiwan 6 - AS27295 2942 0.2% 2942.0 -- GENICA - Genica Corporation 7 - AS42116 154161 9.8% 2802.9 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 8 - AS5089 17967 1.1% 1382.1 -- NTL Virgin Media Limited 9 - AS27458 4514 0.3% 1128.5 -- NEXTGROWTH - Next Growth, LLC 10 - AS51882 1124 0.1% 1124.0 -- GOV45-AS Government of Kurgan area 11 - AS14240 2056 0.1% 1028.0 -- PMC-AS-1 - PMC-Sierra, INC. 12 - AS53362 965 0.1% 965.0 -- MIXIT-AS - Mixit, Inc. 13 - AS22386 938 0.1% 938.0 -- SARB 14 - AS45723 805 0.1% 805.0 -- OMADATA-AS-ID Omadata Indonesia, PT 15 - AS31598 779 0.1% 779.0 -- TELECOMAX-AS TELECOMAX 16 - AS21257 1496 0.1% 748.0 -- IT-PARK-AS TOV IT-PARK 17 - AS6737 2238 0.1% 746.0 -- METAWARE-AS Valvolari S.r.l 18 - AS6072 10328 0.7% 737.7 -- UNISYS-6072 For routing issues, email hostmaster(a)unisys.com 19 - AS41550 2198 0.1% 732.7 -- HBUA-AS HostBizUa network 20 - AS8163 711 0.1% 711.0 -- METROTEL REDES S.A. TOP 20 Unstable Prefixes Rank Prefix Upds % Origin AS -- AS Name 1 - 84.204.132.0/24 19673 1.2% AS20632 -- PETERSTAR-AS PeterStar 2 - 67.97.156.0/24 12848 0.8% AS19223 -- NTEGRATED-SOLUTIONS - Ntegrated Solutions 3 - 130.36.34.0/24 12248 0.7% AS32528 -- ABBOTT Abbot Labs 4 - 130.36.35.0/24 12248 0.7% AS32528 -- ABBOTT Abbot Labs 5 - 88.151.16.0/22 10361 0.6% AS39353 -- PRINCAST-AS Gobierno del Principado de Asturias 6 - 62.36.252.0/22 7803 0.5% AS12479 -- UNI2-AS France Telecom Espana SA 7 - 95.78.84.0/22 6579 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 8 - 46.147.124.0/22 6562 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 9 - 95.78.88.0/22 6561 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 10 - 95.78.100.0/22 6558 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 11 - 95.78.92.0/22 6557 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 12 - 46.147.120.0/22 6554 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 13 - 46.147.108.0/22 6545 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 14 - 95.78.4.0/22 6541 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 15 - 95.78.108.0/22 6541 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 16 - 95.78.116.0/22 6525 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 17 - 176.213.100.0/22 6511 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 18 - 95.78.20.0/22 6506 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 19 - 95.78.12.0/22 6281 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" 20 - 95.78.16.0/22 6278 0.4% AS42116 -- ERTH-NCHLN-AS CJSC "ER-Telecom Holding" Details at http://bgpupdates.potaroo.net ------------------------------------ Copies of this report are mailed to: nanog(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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The Cidr Report
by cidr-report＠potaroo.net 30 Dec '11

30 Dec '11

This report has been generated at Fri Dec 30 21:12:17 2011 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 Prefixes CIDR Agg 23-12-11 388955 227416 24-12-11 389266 227550 25-12-11 389269 227422 26-12-11 389154 227258 27-12-11 388527 227317 28-12-11 389270 227684 29-12-11 389756 227932 30-12-11 390109 227830 AS Summary 39816 Number of ASes in routing system 16743 Number of ASes announcing only one prefix 3475 Largest number of prefixes announced by an AS AS6389 : BELLSOUTH-NET-BLK - BellSouth.net Inc. 109506048 Largest address span announced by an AS (/32s) AS4134 : CHINANET-BACKBONE No.31,Jin-rong Street 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'). --- 30Dec11 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 390175 227816 162359 41.6% All ASes AS6389 3475 219 3256 93.7% BELLSOUTH-NET-BLK - BellSouth.net Inc. AS18566 2094 413 1681 80.3% COVAD - Covad Communications Co. AS4766 2479 994 1485 59.9% KIXS-AS-KR Korea Telecom AS7029 2958 1525 1433 48.4% WINDSTREAM - Windstream Communications Inc AS22773 1517 116 1401 92.4% ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc. AS4755 1513 197 1316 87.0% TATACOMM-AS TATA Communications formerly VSNL is Leading ISP AS4323 1624 387 1237 76.2% TWTC - tw telecom holdings, inc. AS28573 1569 394 1175 74.9% NET Servicos de Comunicao S.A. AS1785 1865 788 1077 57.7% AS-PAETEC-NET - PaeTec Communications, Inc. AS10620 1721 693 1028 59.7% Telmex Colombia S.A. AS7552 1412 415 997 70.6% VIETEL-AS-AP Vietel Corporation AS19262 1389 402 987 71.1% VZGNI-TRANSIT - Verizon Online LLC AS7303 1252 365 887 70.8% Telecom Argentina S.A. AS18101 976 157 819 83.9% RELIANCE-COMMUNICATIONS-IN Reliance Communications Ltd.DAKC MUMBAI AS8151 1455 661 794 54.6% Uninet S.A. de C.V. AS30036 1474 697 777 52.7% MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communications Corp AS8402 1492 732 760 50.9% CORBINA-AS OJSC "Vimpelcom" AS4808 1075 339 736 68.5% CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network AS15557 1092 365 727 66.6% LDCOMNET Societe Francaise du Radiotelephone S.A AS24560 1004 282 722 71.9% AIRTELBROADBAND-AS-AP Bharti Airtel Ltd., Telemedia Services AS7545 1629 947 682 41.9% TPG-INTERNET-AP TPG Internet Pty Ltd AS3356 1106 459 647 58.5% LEVEL3 Level 3 Communications AS2118 672 61 611 90.9% RELCOM-AS OOO "NPO Relcom" AS17974 1718 1113 605 35.2% TELKOMNET-AS2-AP PT Telekomunikasi Indonesia AS17676 677 74 603 89.1% GIGAINFRA Softbank BB Corp. AS4804 662 95 567 85.6% MPX-AS Microplex PTY LTD AS20115 1614 1061 553 34.3% CHARTER-NET-HKY-NC - Charter Communications AS3549 974 422 552 56.7% GBLX Global Crossing Ltd. AS17488 926 374 552 59.6% HATHWAY-NET-AP Hathway IP Over Cable Internet AS9498 844 294 550 65.2% BBIL-AP BHARTI Airtel Ltd. Total 44258 15041 29217 66.0% Top 30 total Possible Bogus Routes 10.86.64.32/30 AS65530 -Private Use AS- 10.86.64.36/30 AS65530 -Private Use AS- 10.86.65.32/30 AS65530 -Private Use AS- 10.86.65.36/30 AS65530 -Private Use AS- 10.255.255.0/30 AS65530 -Private Use AS- 10.255.255.4/30 AS65530 -Private Use AS- 10.255.255.8/30 AS65530 -Private Use AS- 14.192.0.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.4.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.8.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.12.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.16.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.20.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.24.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 14.192.28.0/22 AS45464 NEXTWEB-AS-AP Room 201, TGU Bldg 41.222.79.0/24 AS36938 AMSCOTELECOMS Amsco Telecommunications Nigeria Limited 41.223.92.0/22 AS36936 CELTEL-GABON Celtel Gabon Internet Service 62.61.220.0/24 AS24974 TACHYON-EU Tachyon Europe BV 62.61.221.0/24 AS24974 TACHYON-EU Tachyon Europe BV 64.21.192.0/20 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.212.0/22 AS11610 INETNEBR-1 - Internet Nebraska Corporation 64.21.216.0/21 AS11610 INETNEBR-1 - Internet Nebraska Corporation 66.129.0.0/19 AS3901 ARRAKIS - Higher Technology Services 66.175.222.0/23 AS30058 FDCSERVERS - FDCservers.net 66.180.239.0/24 AS35888 VIGNETTE - VIGNETTE CORPORATION 66.207.32.0/20 AS23011 66.245.176.0/20 AS19318 NJIIX-AS-1 - NEW JERSEY INTERNATIONAL INTERNET EXCHANGE LLC 69.46.224.0/20 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers 69.46.233.0/24 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers 69.46.236.0/24 AS32592 HUNT-BROTHERS-OF-LOUISIANA-LLC - Hunt Brothers 71.19.134.0/23 AS3313 INET-AS BT Italia S.p.A. 80.88.10.0/24 AS33774 DJAWEB 91.234.104.0/22 AS174 COGENT Cogent/PSI 98.159.96.0/20 AS46975 110.34.44.0/22 AS12653 COMTONET KB Impuls Hellas 116.206.72.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 116.206.85.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 116.206.103.0/24 AS6461 MFNX MFN - Metromedia Fiber Network 117.120.56.0/21 AS4755 TATACOMM-AS TATA Communications formerly VSNL is Leading ISP 121.46.0.0/16 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 142.54.0.0/19 AS23498 CDSI - Cogeco Data Services Inc. 172.45.1.0/24 AS29571 CITelecom-AS 172.45.2.0/24 AS29571 CITelecom-AS 172.45.3.0/24 AS29571 CITelecom-AS 172.102.0.0/22 AS4812 CHINANET-SH-AP China Telecom (Group) 190.104.32.0/21 AS27882 Telefónica Celular de Bolivia S.A. 193.0.22.0/23 AS3333 RIPE-NCC-AS RIPE Network Coordination Centre 200.6.93.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.6.94.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.6.95.0/24 AS6400 Compañía Dominicana de Teléfonos, C. por A. - CODETEL 200.23.84.0/24 AS8151 Uninet S.A. de C.V. 200.24.73.0/24 AS26061 Equant Colombia 200.33.40.0/24 AS11172 Alestra, S. de R.L. de C.V. 200.34.0.0/20 AS6342 Instituto Tecnológico y de Estudios Superiores de Monterrey 200.53.0.0/19 AS13878 Diveo do Brasil Telecomunicacoes Ltda 202.1.224.0/24 AS10097 FLOWCOM Flow Communications 2/541 Kent St Sydney NSW 2000 202.8.106.0/24 AS9530 SHINSEGAE-AS SHINSEGAE I&C Co., Ltd. 202.9.55.0/24 AS2764 AAPT AAPT Limited 202.58.113.0/24 AS19161 202.61.75.0/24 AS9927 PHILCOMNET-PH A Multihomed ISP Company 202.83.120.0/21 AS37972 202.83.124.0/24 AS37972 202.83.125.0/24 AS37972 202.83.126.0/24 AS37972 202.94.1.0/24 AS4808 CHINA169-BJ CNCGROUP IP network China169 Beijing Province Network 202.133.70.0/24 AS38616 WORLDCALL-AS-KHI Worldcall Telecom Limited 202.160.152.0/22 AS10113 DATAFAST-AP DATAFAST TELECOMMUNICATIONS LTD 202.174.125.0/24 AS9498 BBIL-AP BHARTI Airtel Ltd. 202.176.1.0/24 AS9942 COMINDICO-AP SOUL Converged Communications Australia 202.179.134.0/24 AS23966 LDN-AS-PK LINKdotNET Telecom Limited 203.23.1.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.24.38.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.30.127.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/23 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.86.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.87.0/24 AS18111 NETSPEED-AS-AP Netspeed Internet Communications 203.32.188.0/24 AS1221 ASN-TELSTRA Telstra Pty Ltd 203.142.219.0/24 AS45149 205.150.0.0/15 AS701 UUNET - MCI Communications Services, Inc. d/b/a Verizon Business 205.175.214.0/24 AS5583 ORANGE-BUSINESS-SERVICES-BENELUX France Telecom S.A. 205.210.125.0/24 AS36563 TELX-DALLAS - Telx 206.123.129.0/24 AS10790 INREACH-AS - InReach Internet 206.180.240.0/20 AS12083 KNOLOGY-NET - KNOLOGY, Inc. 206.197.184.0/24 AS23304 DATOTEL-STL-AS - Datotel LLC, a NetLabs LLC Company 207.174.131.0/24 AS26116 INDRA - Indra's Net Inc 207.174.132.0/23 AS26116 INDRA - Indra's Net Inc 207.174.152.0/23 AS26116 INDRA - Indra's Net Inc 207.174.154.0/24 AS26116 INDRA - Indra's Net Inc 207.174.155.0/24 AS26116 INDRA - Indra's Net Inc 207.174.200.0/24 AS22658 EARTHNET - Earthnet, Inc. 207.174.248.0/21 AS6653 PRIVATEI - privateI, LLC 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc. 208.64.240.0/21 AS13871 TELEBYTE-NW - Telebyte NW 208.83.53.0/24 AS40569 YGOMI-AS - Ygomi LLC 208.91.56.0/21 AS22241 IC2NET - IC2NET 208.91.56.0/24 AS22241 IC2NET - IC2NET 208.91.57.0/24 AS22241 IC2NET - IC2NET 208.91.58.0/24 AS22241 IC2NET - IC2NET 208.91.59.0/24 AS22241 IC2NET - IC2NET 208.91.60.0/24 AS22241 IC2NET - IC2NET 208.91.61.0/24 AS22241 IC2NET - IC2NET 208.91.62.0/24 AS22241 IC2NET - IC2NET 208.91.63.0/24 AS22241 IC2NET - IC2NET 209.133.224.0/19 AS4323 TWTC - tw telecom holdings, inc. 209.148.64.0/19 AS13773 TELNETCOMM - Telnet Communications 209.177.64.0/20 AS6461 MFNX MFN - Metromedia Fiber Network 209.213.0.0/20 AS33005 ELTOPIA - Eltopia.com, LLC 209.222.240.0/22 AS19747 210.56.150.0/23 AS38138 INTECH-TRANSIT-BD InTech Online Limited, INTERNET SERVICE LIMITED 216.12.160.0/20 AS26627 AS-PILOSOFT - Pilosoft, Inc. 216.21.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport 216.194.160.0/20 AS13818 PHX-INTL-TELEPORT - Phoenix International Teleport Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)nanog.org eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

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Weekly Routing Table Report
by Routing Analysis Role Account 30 Dec '11

30 Dec '11

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats(a)lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz(a)gmail.com>. Routing Table Report 04:00 +10GMT Sat 31 Dec, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 388032 Prefixes after maximum aggregation: 168367 Deaggregation factor: 2.30 Unique aggregates announced to Internet: 190083 Total ASes present in the Internet Routing Table: 39705 Prefixes per ASN: 9.77 Origin-only ASes present in the Internet Routing Table: 32554 Origin ASes announcing only one prefix: 15514 Transit ASes present in the Internet Routing Table: 5351 Transit-only ASes present in the Internet Routing Table: 137 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 33 Max AS path prepend of ASN (56677) 25 Prefixes from unregistered ASNs in the Routing Table: 1999 Unregistered ASNs in the Routing Table: 1030 Number of 32-bit ASNs allocated by the RIRs: 2144 Number of 32-bit ASNs visible in the Routing Table: 1800 Prefixes from 32-bit ASNs in the Routing Table: 4327 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 112 Number of addresses announced to Internet: 2504923696 Equivalent to 149 /8s, 78 /16s and 26 /24s Percentage of available address space announced: 67.6 Percentage of allocated address space announced: 67.6 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.8 Total number of prefixes smaller than registry allocations: 164463 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 95928 Total APNIC prefixes after maximum aggregation: 31403 APNIC Deaggregation factor: 3.05 Prefixes being announced from the APNIC address blocks: 92286 Unique aggregates announced from the APNIC address blocks: 38721 APNIC Region origin ASes present in the Internet Routing Table: 4619 APNIC Prefixes per ASN: 19.98 APNIC Region origin ASes announcing only one prefix: 1249 APNIC Region transit ASes present in the Internet Routing Table: 729 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 125 Number of APNIC addresses announced to Internet: 632494720 Equivalent to 37 /8s, 179 /16s and 26 /24s Percentage of available APNIC address space announced: 80.2 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 146775 Total ARIN prefixes after maximum aggregation: 74964 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 118927 Unique aggregates announced from the ARIN address blocks: 48922 ARIN Region origin ASes present in the Internet Routing Table: 14816 ARIN Prefixes per ASN: 8.03 ARIN Region origin ASes announcing only one prefix: 5673 ARIN Region transit ASes present in the Internet Routing Table: 1573 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 14 Number of ARIN addresses announced to Internet: 804638400 Equivalent to 47 /8s, 245 /16s and 206 /24s Percentage of available ARIN address space announced: 63.9 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, 39936-40959, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 95203 Total RIPE prefixes after maximum aggregation: 51822 RIPE Deaggregation factor: 1.84 Prefixes being announced from the RIPE address blocks: 87230 Unique aggregates announced from the RIPE address blocks: 55392 RIPE Region origin ASes present in the Internet Routing Table: 16223 RIPE Prefixes per ASN: 5.38 RIPE Region origin ASes announcing only one prefix: 7980 RIPE Region transit ASes present in the Internet Routing Table: 2576 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1256 Number of RIPE addresses announced to Internet: 495420104 Equivalent to 29 /8s, 135 /16s and 130 /24s Percentage of available RIPE address space announced: 79.8 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 40960-45055, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 37048 Total LACNIC prefixes after maximum aggregation: 8031 LACNIC Deaggregation factor: 4.61 Prefixes being announced from the LACNIC address blocks: 36595 Unique aggregates announced from the LACNIC address blocks: 19051 LACNIC Region origin ASes present in the Internet Routing Table: 1561 LACNIC Prefixes per ASN: 23.44 LACNIC Region origin ASes announcing only one prefix: 452 LACNIC Region transit ASes present in the Internet Routing Table: 285 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 24 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 401 Number of LACNIC addresses announced to Internet: 95159432 Equivalent to 5 /8s, 172 /16s and 4 /24s Percentage of available LACNIC address space announced: 63.0 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 8588 Total AfriNIC prefixes after maximum aggregation: 2072 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 6623 Unique aggregates announced from the AfriNIC address blocks: 2091 AfriNIC Region origin ASes present in the Internet Routing Table: 504 AfriNIC Prefixes per ASN: 13.14 AfriNIC Region origin ASes announcing only one prefix: 160 AfriNIC Region transit ASes present in the Internet Routing Table: 112 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 30878464 Equivalent to 1 /8s, 215 /16s and 43 /24s Percentage of available AfriNIC address space announced: 46.0 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2475 11101 972 Korea Telecom (KIX) 17974 1718 503 37 PT TELEKOMUNIKASI INDONESIA 7545 1629 303 86 TPG Internet Pty Ltd 4755 1516 385 157 TATA Communications formerly 7552 1412 1064 7 Vietel Corporation 9583 1185 90 530 Sify Limited 9829 1170 989 28 BSNL National Internet Backbo 4808 1075 2034 308 CNCGROUP IP network: China169 24560 1004 383 163 Bharti Airtel Ltd., Telemedia 18101 974 131 156 Reliance Infocom Ltd Internet Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3471 3814 220 bellsouth.net, inc. 7029 2917 1017 200 Windstream Communications Inc 18566 2094 383 177 Covad Communications 1785 1862 680 122 PaeTec Communications, Inc. 4323 1623 1065 385 Time Warner Telecom 20115 1614 1550 623 Charter Communications 22773 1517 2909 107 Cox Communications, Inc. 30036 1474 262 689 Mediacom Communications Corp 19262 1389 4683 401 Verizon Global Networks 7018 1301 7012 855 AT&T WorldNet Services Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8402 1547 480 15 Corbina telecom 15557 1092 2161 64 LDCOM NETWORKS 2118 672 99 14 EUnet/RELCOM Autonomous Syste 6830 642 1928 413 UPC Distribution Services 34984 637 132 199 BILISIM TELEKOM 12479 552 636 53 Uni2 Autonomous System 20940 547 176 438 Akamai Technologies European 3320 532 8162 398 Deutsche Telekom AG 3292 480 2106 407 TDC Tele Danmark 8866 465 134 27 Bulgarian Telecommunication C Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1721 319 159 TVCABLE BOGOTA 28573 1569 1064 75 NET Servicos de Comunicao S.A 8151 1453 2981 350 UniNet S.A. de C.V. 7303 1252 755 176 Telecom Argentina Stet-France 27947 634 73 95 Telconet S.A 22047 582 322 17 VTR PUNTO NET S.A. 7738 551 1050 31 Telecomunicacoes da Bahia S.A 3816 548 237 91 Empresa Nacional de Telecomun 6503 539 434 67 AVANTEL, S.A. 11172 530 86 97 Servicios Alestra S.A de C.V Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 1039 958 13 TEDATA 24863 793 146 36 LINKdotNET AS number 3741 280 939 229 The Internet Solution 6713 250 649 18 Itissalat Al-MAGHRIB 15706 242 32 6 Sudatel Internet Exchange Aut 33776 240 13 8 Starcomms Nigeria Limited 29571 216 17 13 Ci Telecom Autonomous system 12258 195 28 60 Vodacom Internet Company 24835 189 80 8 RAYA Telecom - Egypt 16637 160 664 82 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3471 3814 220 bellsouth.net, inc. 7029 2917 1017 200 Windstream Communications Inc 4766 2475 11101 972 Korea Telecom (KIX) 18566 2094 383 177 Covad Communications 1785 1862 680 122 PaeTec Communications, Inc. 10620 1721 319 159 TVCABLE BOGOTA 17974 1718 503 37 PT TELEKOMUNIKASI INDONESIA 7545 1629 303 86 TPG Internet Pty Ltd 4323 1623 1065 385 Time Warner Telecom 20115 1614 1550 623 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7029 2917 2717 Windstream Communications Inc 18566 2094 1917 Covad Communications 1785 1862 1740 PaeTec Communications, Inc. 17974 1718 1681 PT TELEKOMUNIKASI INDONESIA 10620 1721 1562 TVCABLE BOGOTA 7545 1629 1543 TPG Internet Pty Ltd 8402 1547 1532 Corbina telecom 4766 2475 1503 Korea Telecom (KIX) 28573 1569 1494 NET Servicos de Comunicao S.A 22773 1517 1410 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 128.0.0.0/21 12654 RIPE NCC RIS Project 128.0.24.0/24 12654 RIPE NCC RIS Project Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 14.192.0.0/22 45464 Room 201, TGU Bldg 14.192.4.0/22 45464 Room 201, TGU Bldg 14.192.8.0/22 45464 Room 201, TGU Bldg 14.192.12.0/22 45464 Room 201, TGU Bldg 14.192.16.0/22 45464 Room 201, TGU Bldg 14.192.20.0/22 45464 Room 201, TGU Bldg 14.192.24.0/22 45464 Room 201, TGU Bldg 14.192.28.0/22 45464 Room 201, TGU Bldg 37.26.200.0/21 28748 AlphaCron Datensysteme AS 37.26.208.0/20 57660 >>UNKNOWN<< Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:12 /10:27 /11:81 /12:237 /13:465 /14:813 /15:1451 /16:12081 /17:6120 /18:10185 /19:20160 /20:27929 /21:28328 /22:38611 /23:35934 /24:201964 /25:1183 /26:1402 /27:779 /28:166 /29:53 /30:14 /31:0 /32:18 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2545 2917 Windstream Communications Inc 6389 2116 3471 bellsouth.net, inc. 18566 2043 2094 Covad Communications 10620 1616 1721 TVCABLE BOGOTA 8402 1526 1547 Corbina telecom 30036 1433 1474 Mediacom Communications Corp 11492 1115 1152 Cable One 1785 1064 1862 PaeTec Communications, Inc. 7011 1051 1168 Citizens Utilities 15557 1042 1092 LDCOM NETWORKS Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:478 2:414 4:15 5:1 6:3 8:366 12:1948 13:1 14:575 15:11 16:3 17:7 20:9 23:81 24:1712 27:1127 31:770 32:67 33:2 34:2 36:4 37:10 38:791 40:114 41:3018 42:82 43:1 44:3 46:1150 47:3 49:295 50:473 52:13 55:5 56:2 57:41 58:929 59:488 60:343 61:1173 62:936 63:1969 64:4123 65:2304 66:4375 67:1986 68:1165 69:3132 70:925 71:410 72:1785 74:2644 75:431 76:319 77:933 78:871 79:494 80:1190 81:842 82:533 83:530 84:563 85:1167 86:746 87:901 88:358 89:1588 90:261 91:4382 92:532 93:1515 94:1342 95:1051 96:396 97:288 98:766 99:38 100:18 101:124 103:588 106:11 107:120 108:101 109:1424 110:676 111:830 112:432 113:509 114:593 115:702 116:864 117:719 118:899 119:1223 120:365 121:676 122:1619 123:1036 124:1330 125:1347 128:532 129:189 130:189 131:585 132:162 133:21 134:226 135:54 136:206 137:151 138:285 139:126 140:491 141:257 142:381 143:392 144:501 145:67 146:476 147:221 148:633 149:271 150:165 151:192 152:444 153:169 154:7 155:382 156:210 157:365 158:153 159:505 160:346 161:221 162:335 163:188 164:522 165:390 166:546 167:455 168:807 169:146 170:828 171:95 172:4 173:1813 174:587 175:412 176:322 177:450 178:1151 180:1210 181:43 182:677 183:264 184:424 185:1 186:1462 187:797 188:1007 189:1177 190:5339 192:5974 193:5445 194:3787 195:3182 196:1289 197:174 198:3614 199:4239 200:5567 201:1685 202:8508 203:8524 204:4341 205:2421 206:2688 207:2822 208:4016 209:3562 210:2748 211:1474 212:1955 213:1807 214:808 215:93 216:4911 217:1467 218:567 219:338 220:1253 221:560 222:324 223:267 End of report

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IPTV and ASM
by Mike McBride 29 Dec '11

29 Dec '11

Anyone using ASM (versus SSM) for IPTV? If so why? thanks, mike

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Notifying customers of upstream modifications
by Andy Susag 29 Dec '11

29 Dec '11

Hi All, Just a quick question for those of you running ISPs with BGP downstreams. If you add or remove an upstream provider to your network, do you provide notification to your downstream customers? Likely, it would cause a shift in their traffic. If they are peering with multiple ISPs themselves, they may see a traffic flux. I know for a fact that our upstreams do not notify us of events so we tend to not send out these sort of notifications. Just wonder what everyone else does or if anyone happens to know "best practice" Thanks, Andy

4 4

Re: Misconceptions, was: IPv6 RA vs DHCPv6 - The chosen one?
by Brandon Butterworth 28 Dec '11

28 Dec '11

<facts deleted> > Second, publishing specifications, implementing them and waiting for > users to adopt them takes a very, very long time. For DHCPv6 support, > the time from first publication (2003) until wide availability (2011) > has been 8 years. Are we ready to live in a half-baked world for > another half a decade or more just so we can add this feature enterprise: "but you want us to do v6 today, why didn't you put it in when there was time then. Let us know when it's ready, ktnxbye" > I would like to make the following suggestion: rather than having > DHCPv6 impose a default gateway with all the issues that that > creates, why not implement a router preference option. This way, > DHCPv6 can be used to select the "correct" default gateway from > the list of possible default gateways that announce their presence > through RAs sounds like the which half of the baby would you like option. I don't have a dog in this fight but understand the dhcp only option is so the dhcp guys manage * and don't have to talk to the router guys other than to tell them to fix the router when it breaks. brandon

1 0

Speed Test Results
by jacob miller 28 Dec '11

28 Dec '11

Hi, Am having a debate on the results of speed tests sites. Am interested in knowing the thoughts of different individuals in regards to this. Regards, Jacob

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