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Code Red 2 Erratication
by Joe Blanchard 19 Aug '01

19 Aug '01

Not sure if this will do anything, but perhaps it will. I created a file on several Appache servers called default.ida containing garbage and weighting about 50 megs in size. I've not had a chance to test the effects on the CodeRed worm infected boxes nor the results of this, but it in theroey should choke them. I know it choked my browser, at least in netscape on a linux box and then an IE5 browser on a MS box. Maybe a fix? Who knows. -Joe

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The Cidr Report
by CIDR Report 18 Aug '01

18 Aug '01

This is an auto-generated mail on Fri Aug 17 23:00:00 PDT 2001 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 17Aug01 0) General Status Table History ------------- Date Prefixes 100801 102845 110801 102706 120801 102533 130801 102657 140801 102662 150801 102621 160801 102577 170801 102866 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 82.105.0.0/16 from AS3269 *** Bogus 82.105.128.0/17 from AS3269 AS Summary ---------- Number of ASes in routing system: 11408 Number of ASes announcing only one prefix: 6792 (3875 cidr, 2917 classful) Largest number of cidr routes: 852 announced by AS701 Largest number of classful routes: 1406 announced by AS701 1) Gains by aggregating at the origin AS level --- 17Aug01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1258 970 288 22.9% Telstra Pty Ltd AS701 1406 1188 218 15.5% UUNET Technologies, Inc. AS2551 798 637 161 20.2% ICG NetAhead, Inc AS4151 289 165 124 42.9% USDA AS4293 379 270 109 28.8% Cable & Wireless USA AS6595 164 58 106 64.6% DoD Education Activity Network As AS577 294 188 106 36.1% Bell Advanced Communications Inc. AS16473 173 70 103 59.5% Bell South AS13999 113 11 102 90.3% Mega Cable S.A. de C.V. AS705 245 145 100 40.8% UUNET Technologies, Inc. AS6429 200 103 97 48.5% AT&T Chile Internet S.A. AS7018 741 652 89 12.0% AT&T AS4755 210 123 87 41.4% Videsh Sanchar Nigam Ltd. Autonom AS7046 324 254 70 21.6% UUNET Technologies, Inc. AS724 231 164 67 29.0% DLA Systems Automation Center AS6471 123 60 63 51.2% ENTEL CHILE S.A. AS12302 94 33 61 64.9% MobiFon S.A. AS1239 457 398 59 12.9% Sprint AS4200 126 68 58 46.0% Apex Global Information Services, AS3464 148 91 57 38.5% Alabama SuperComputer Network AS16758 63 6 57 90.5% IKON Office Solutions AS703 309 254 55 17.8% UUNET Technologies, Inc. AS3908 320 266 54 16.9% Supernet, Inc. AS226 147 94 53 36.1% Los Nettos AS1 543 490 53 9.8% BBN Planet AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS209 284 232 52 18.3% Qwest AS4323 240 189 51 21.2% Time Warner Communications, Inc. AS17561 113 62 51 45.1% Internet service provision to Wes AS855 145 95 50 34.5% Canadian Research Network For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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Re: verizon atm outage
by Robert Boyle 18 Aug '01

18 Aug '01

---- Original Message ---- From: nathan(a)robotics.net To: alex(a)nac.net, Subject: Re: verizon atm outage Date: Fri, 17 Aug 2001 22:39:59 -0400 (EDT) > >On Fri, 17 Aug 2001, Alex Rubenstein wrote: > >> Interesting. >> >> Out of about 350 PVCs on an OC3 in to the Newark ATM switch >cluster, we're >> seeing four circuits down; could be considered normal.. >> >> We're not seeing any additional loss or latency at this point. > >Ditto, my OC3s in BOS, NYC, and DCA into Verizon ATM cloud are all >up. Same here at 2:30AM. It seems that whatever they did earlier tonight generated traps on exactly 36 of our circuits all in LATA 224 in NJ from 7-9PM with momentary (<60 seconds) loss of LMI. Nothing on any of our other 100+ circuits in NY or NJ and nothing since then... All of our ATM and Frame circuits are up and no new alarms have been received. I find it hard to believe the upgrade went that smoothly, but we still have another 4.5 hours for them to play. -Robert

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Re: verizon atm outage
by Robert Boyle 18 Aug '01

18 Aug '01

At 08:11 PM 8/17/2001 -0400, you wrote: >verizon techs are encountering problems with equiptment in the entire >mid-atlantic region. ADSL outages are expected, and may last several >hours each. they will be rolling outages, rather than blanketing the >entire former BA territory at once. > >i didn't get a lot of details from the 5 different people in 3 >different departments that i talked to, but it sounded gnarly and >everyone was sounding very pessimistic. > >i gathered that there was some routine maintainance that turned into >this widespread outage. they expect areas to be going up and down for >"the entire weekend." one tech told me to advise my customers to >reset their modems before attempting to connect again, but he couldn't >explain to me what was going on. > >fun fun fun. > >anyone else hear a different story? This is the official notice. It isn't supposed to start for another 3 hours, but we have been seeing periodic bouncing on about 30-40 customer T1 lines. 8/18/2001 - Verizon has notified us of scheduled network outage: "...to allow the upgrade of the Frame Relay CBX-9000/500 switches in the Atlantic Coastal LATA of New Jersey. The planned upgrade being instituted will bring extended functionality and ensure a more robust network through deployment of new software and hardware revisions. This upgrade will take place on August 18th, 2001. All work directly affecting customer circuits is scheduled to begin no earlier than midnight and end no later than seven AM. Please be aware that while the upgrade is taking place, you may experience sporadic PVC interruptions due to rerouting, on your frame relay circuits in this LATA. The scheduled window for circuits to be down is four hours. Your circuits may be down for all or part of this four hour window." As always, Tellurian's NOC will be monitoring circuits and opening tickets if any customer's service is not restored by 7AM as promised by Verizon. All our Verizon Frame Relay and ATM circuits are ok at this time. -Robert Tellurian Networks - The Ultimate Internet Connection http://www.tellurian.com | 888-TELLURIAN | 973-300-9211 "It is never too late to be what you might have been." -George Eliot

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verizon atm outage
by deeann mikula 18 Aug '01

18 Aug '01

verizon techs are encountering problems with equiptment in the entire mid-atlantic region. ADSL outages are expected, and may last several hours each. they will be rolling outages, rather than blanketing the entire former BA territory at once. i didn't get a lot of details from the 5 different people in 3 different departments that i talked to, but it sounded gnarly and everyone was sounding very pessimistic. i gathered that there was some routine maintainance that turned into this widespread outage. they expect areas to be going up and down for "the entire weekend." one tech told me to advise my customers to reset their modems before attempting to connect again, but he couldn't explain to me what was going on. fun fun fun. anyone else hear a different story? deeann m.m. mikula director of operations telerama public access internet http://www.telerama.com 1.877.688.3200

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Re: Natural class B address
by smd＠clock.org 17 Aug '01

17 Aug '01

Sae writes: | Have question about filtering policy on the natural class B address block. | Trying to use /21 or shorter for various places including international, | from the natural class B block, we have now. Do you see any problem on | announcing as /21 to the Internet? Yes. Give it back. Renumber into best-fit CIDR blocks from your provider(s) and/or IRR(s). Be a good citizen of the global routing tables, or be filtered. Sean.

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wanted: wireless magic tricks
by Cerqua, Toby 17 Aug '01

17 Aug '01

hey all, we've got a client that wants some crazy stuff, and i need either suggestions or confirmation that this is impossible/too expensive. client needs 45Mbps pushed over 20 miles... and he wants it wireless. the kicker is that they don't want a T3 because it is "too expensive" and it would take too long to get installed. it doesn't need to be constant, but he wants to move of 2.5GB within 45 minutes. this is in the chicago area, if that helps any. so, i don't know, satellite? - toby ----------------------------------------------- t(a)platinumsystems.net http://www.platinumsystems.net

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Natural class B address
by Saeyul Park 17 Aug '01

17 Aug '01

Hello Have question about filtering policy on the natural class B address block. Trying to use /21 or shorter for various places including international, from the natural class B block, we have now. Do you see any problem on announcing as /21 to the Internet? This issue looks like discussed in the past, apologize for the same question. Thank you, Sae,

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RE: Internet traffic analysis
by Roeland Meyer 16 Aug '01

16 Aug '01

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Re: wanted: wireless magic tricks
by Mark Allman 16 Aug '01

16 Aug '01

> Catch is, the bw x delay product will kill you on these links if > you run TCP sessions and you won't get anywhere near line rate. Not true. If you turn on MS TCP or solaris TCP or whatever you won't get line rate out of the box awithout tweaking things a bit, but you can make *TCP* do it. Some folks here have pushed TCP to over 500 Mbps over an OC-12 satellite channel with the normal, everyday TCP implementation in solaris. (I.e., when you discount header overhead, etc. they got very close to line rate). allman --- Mark Allman -- BBN/NASA GRC -- http://roland.grc.nasa.gov/~mallman/

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