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The Cidr Report
by cidr-report＠potaroo.net 15 Nov '02

15 Nov '02

This report has been generated at Fri Nov 15 21:51:38 2002 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 08-11-02 115262 82970 09-11-02 115386 83004 10-11-02 115366 82989 11-11-02 115336 83068 12-11-02 115307 83083 13-11-02 115426 83148 14-11-02 115439 83284 15-11-02 115525 83493 AS Summary 14038 Number of ASes in routing system 5503 Number of ASes announcing only one prefix 1706 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73007104 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA 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'). --- 15Nov02 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 115835 83543 32292 27.9% All ASes AS3908 1083 559 524 48.4% SUPERNETASBLK SuperNet, Inc. AS701 1706 1251 455 26.7% ALTERNET-AS UUNET Technologies, Inc. AS7843 744 299 445 59.8% ADELPHIA-AS Adelphia Corp. AS7018 1367 1003 364 26.6% ATT-INTERNET4 AT&T WorldNet Services AS6197 458 108 350 76.4% BATI-ATL BellSouth Network Solutions, Inc AS18566 354 6 348 98.3% COVAD Covad Communications AS4323 523 183 340 65.0% TW-COMM Time Warner Communications, Inc. AS1221 1190 865 325 27.3% ASN-TELSTRA Telstra Pty Ltd AS7046 589 303 286 48.6% UUNET-CUSTOMER UUNET Technologies, Inc. AS6347 358 81 277 77.4% DIAMOND SAVVIS Communications Corporation AS4355 402 135 267 66.4% ERMS-EARTHLNK EARTHLINK, INC AS1239 900 659 241 26.8% SPRINTLINK Sprint AS852 710 469 241 33.9% ASN852 Telus Advanced Communications AS4151 343 106 237 69.1% USDA-1 USDA AS22927 283 48 235 83.0% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS705 437 203 234 53.5% ASN-ALTERNET UUNET Technologies, Inc. AS209 564 331 233 41.3% ASN-QWEST Qwest AS6198 409 179 230 56.2% BATI-MIA BellSouth Network Solutions, Inc AS4814 234 15 219 93.6% CHINANET-BEIJING-AP China Telecom (Group)Beijing Telecom CompanyBeijing China AS1 658 441 217 33.0% GNTY-1 Genuity AS6140 268 67 201 75.0% IMPSAT-USA ImpSat USA, Inc. AS17676 227 30 197 86.8% GIGAINFRA APNIC ASN block AS6595 248 57 191 77.0% DODDSEUR DoD Education Activity Network Assistance Center AS17557 310 122 188 60.6% PKTELECOM-AS-AP APNIC ASN block AS4134 297 114 183 61.6% ERX-CHINALINK Data Communications Bureau AS690 506 327 179 35.4% MERIT-AS-27 Merit Network Inc. AS2048 263 87 176 66.9% LANET-1 State of Louisiana AS7132 232 67 165 71.1% SBIS-AS Southwestern Bell Internet Services AS174 295 136 159 53.9% PSINET PSINet Inc. AS2548 401 243 158 39.4% ICIX-MD-AS Business Internet, Inc. Total 16359 8494 7865 48.1% Top 30 total 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)lists.apnic.net routing-wg(a)ripe.net afnog(a)afnog.org

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RE: Blocking specific sites within certain countries.
by Simon Waters 14 Nov '02

14 Nov '02

> This all strikes me as incorrect. The function of the domain name system is > primarily to translate an IP number into a domain name, vice versa. If a > user wishes to browse to <http://64.236.16.20> he/she will arrive also at > <www.cnn.com>. Remember some servers won't work with IP address, typically if they host multiple sites on one IP address. A topical example might be; http://www.ehj-navarre.org/ versus http://206.168.174.6/ Where users recursive DNS servers are allocated by the ISP's DHCP service this stops the uninitiated, but is trivial for those who know how to work around it. The technical issues are probably well understood by most of NANOG's readership, the issue is 'is it sufficient to satisfy the courts'. My guess is yes, but it is one for the ISPs legal advisers. In most cases I think ISPs would be well advised to oppose being made into censors of the Internet, as it is a model that doesn't scale well. Aside from moral, political and technical objections, it is bad business being the unpaid guardians of everyone elses morality. The key technical objection is of course it undermines the DNS stability, there is no way apriori to establish if a domain contains DNS servers for other domains. Although where it is just one IP address, you could check for a DNS server at the time of censor, but even that could change. Reminds me of the paper on complexity we had posted a few days back, small changes to the universal DNS view usually have a small impact, but sometimes the impact may be amplified.

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DNS Subdomains
by Gawie Marais (Home) 14 Nov '02

14 Nov '02

Helo, Might be a simple question.... But... I've got no idea what the answer could be... In the early days, one only had a .com address space (amongst the most popular ones). These days, there is .com(this) and .com(that) and any kind of .(whatever) you can think of. My question... How does one start a .(whatever) ?? Who is actually controlling these .(whatever) domains ? -------------------------------------------------------------------- Gawie J Marais Mail: gawie(a)inx.co.za Technical Member Web: http://www.inx.co.za/ inX - Internet eXchange South Africa Tel: +27 11 956 6935 Fax: +27 11 956 6851 'I just bought an 8x mouse, and it's FAST! ' :)-

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DNS Subdomains
by Gawie Marais (Home) 14 Nov '02

14 Nov '02

Helo, Might be a simple question.... But... I've got no idea what the answer could be... In the early days, one only had a .com address space (amongst the most popular ones). These days, there is .com(this) and .com(that) and any kind of .(whatever) you can think of. My question... How does one start a .(whatever) ?? Who is actually controlling these .(whatever) domains ? -------------------------------------------------------------------- Gawie J Marais Mail: gawie(a)inx.co.za Technical Member Web: http://www.inx.co.za/ inX - Internet eXchange South Africa Tel: +27 11 956 6935 Fax: +27 11 956 6851 'I just bought an 8x mouse, and it's FAST! ' :)-

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Blocking specific sites within certain countries.
by Alif The Terrible 14 Nov '02

14 Nov '02

Good Morning, I am interested in how everyone who is affected by the recent Spanish Judicial order to block specific "terrorist affiliated" sites from access to Spanish nationals? Without re-starting the endless debate over how impossible this is in fact, since that is obvious - how is everyone "complying" with this order? -- Yours, J.A. Terranson sysadmin(a)mfn.org If Governments really want us to behave like civilized human beings, they should give serious consideration towards setting a better example: Ruling by force, rather than consensus; the unrestrained application of unjust laws (which the victim-populations were never allowed input on in the first place); the State policy of justice only for the rich and elected; the intentional abuse and occassionally destruction of entire populations merely to distract an already apathetic and numb electorate... This type of demogoguery must surely wipe out the fascist United States as surely as it wiped out the fascist Union of Soviet Socialist Republics. The views expressed here are mine, and NOT those of my employers, associates, or others. Besides, if it *were* the opinion of all of those people, I doubt there would be a problem to bitch about in the first place... --------------------------------------------------------------------

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compuserve proxy ips
by Jason Beltrame 14 Nov '02

14 Nov '02

Does anyone know where I can get a list of compuserve's proxy ip's? Thanks, Jason ---------------------------------------------------------- Jason Beltrame INetU, Inc.(tm)- http://www.INetU.net Electronic commerce - Web development - Web hosting jbeltram(a)INetU.net - Phone: (610) 266-7441

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Re: [South Florida Network Operators Group]
by Joshua Smith 14 Nov '02

14 Nov '02

"Dale Levesque" <dlevesque(a)floridabroadband.net> wrote: > --------------------------------------------- > Attachment: > MIME Type: multipart/alternative > --------------------------------------------- > Does anyone in here now of a South Florida Network Operators Group, or > something similar, and if not, would they be interested in starting one. > > > > Dale Levesque > > i'm in miami (work in pompano) - i would be interested - the only things remotely related to networking are a couple of security focused groups (south florida honeynet www.sfhn.net, ISSA, and Infraguard chapters) joshua "Walk with me through the Universe, And along the way see how all of us are Connected. Feast the eyes of your Soul, On the Love that abounds. In all places at once, seemingly endless, Like your own existence." - Stephen Hawking -

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Re: all the mails on Filtering
by Joe Provo 14 Nov '02

14 Nov '02

On Wed, Nov 13, 2002 at 10:45:15AM -0800, Harsha Narayan wrote: [snip] > But it appears that there are many cases where customers prefer > to take a prefix from the ISP rather than an RIR even if it is a > /19 or a /20 - for example from the /11 of a big ISP, there are 50 > /19s and /20s which are multihoming assignments. > > I was told that this saves the cost of RIR membership for the > customer. When shaving pennies, be sure you don't slice off your thumb. And if you do, don't blame someone else. -- crimson(a)sidehack.gweep.net * jprovo(a)gnu.ai.mit.edu * jzp(a)rsuc.gweep.net RSUC / GweepNet / Spunk / FnB / Usenix / SAGE

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C&W east coast flap this afternoon?
by Jonathan Disher 13 Nov '02

13 Nov '02

Around 1340 EST today, all four of our C&W connections (1 each of BAR-1 and 2 to both Atlanta/ALD and WashDC/DCK) flapped (physical circuit down/up) simultaneously, followed by BGP flaps on all four about ten minutes later. Anyone else notice C&W getting weird? Or could this be related to the switchover to New Edge Networks (*grumble*)? -j

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South Florida Network Operators Group
by Dale Levesque 13 Nov '02

13 Nov '02

Does anyone in here now of a South Florida Network Operators Group, or something similar, and if not, would they be interested in starting one. Dale Levesque

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