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comcast routing issue question
by Jim Popovitch 30 Nov '06

30 Nov '06

Question: What could cause the first trace below to succeed, but the second trace to fail? $ mtr 69.61.40.35 HOST: blue Loss% Snt Last Avg Best Wrst 1. 192.168.3.1 0.0% 1 4.3 4.3 4.3 4.3 2. 73.62.48.1 0.0% 1 10.6 10.6 10.6 10.6 3. 68.86.108.25 0.0% 1 11.4 11.4 11.4 11.4 4. 68.86.106.54 0.0% 1 9.8 9.8 9.8 9.8 5. 68.86.106.9 0.0% 1 20.5 20.5 20.5 20.5 6. 68.86.90.121 0.0% 1 11.3 11.3 11.3 11.3 7. 68.86.84.70 0.0% 1 27.7 27.7 27.7 27.7 8. 64.213.76.77 0.0% 1 24.5 24.5 24.5 24.5 9. 208.50.254.150 0.0% 1 39.4 39.4 39.4 39.4 10. 208.49.83.237 0.0% 1 46.6 46.6 46.6 46.6 11. 208.49.83.234 0.0% 1 40.7 40.7 40.7 40.7 12. 69.61.40.35 0.0% 1 43.9 43.9 43.9 43.9 $ mtr 69.61.40.34 HOST: blue Loss% Snt Last Avg Best Wrst 1. 192.168.3.1 0.0% 1 1.1 1.1 1.1 1.1 2. 73.62.48.1 0.0% 1 9.9 9.9 9.9 9.9 3. 68.86.108.25 0.0% 1 9.3 9.3 9.3 9.3 4. 68.86.106.54 0.0% 1 9.6 9.6 9.6 9.6 5. 68.86.106.9 0.0% 1 9.0 9.0 9.0 9.0 6. 68.86.90.121 0.0% 1 18.2 18.2 18.2 18.2 7. 68.86.84.70 0.0% 1 23.9 23.9 23.9 23.9 8. ??? 100.0 1 0.0 0.0 0.0 0.0 Taking the 69.61.40.33/28 subnet a bit further, .36 drops at 68.86.84.70 but .37 - .39 make it. .40 drops at 68.86.84.70, but .41 makes it. Crazy. -Jim P.

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Contact for AS18566 (covad)?
by David Hubbard 30 Nov '06

30 Nov '06

Tried their support line but they won't talk to me without a circuit ID or other customer credential and I'm having a routing issue getting to a portion of their network through the hand off from Level 3 Miami to them. Thanks, David

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Reminder: NANOG 39 submissions due December 7
by Steve Feldman 30 Nov '06

30 Nov '06

This is a reminder that submissions for the NANOG 39 program are due by Thursday, December 7, 2006. For details, see the Call for Presentations at: http://www.nanog.org/mtg-0702/callforpresent.html See you in Toronto! Steve

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RE: How to stop UltraDNS sales people calling
by Joseph Jackson 30 Nov '06

30 Nov '06

I had ultradns calling also but told them we weren't at a place to use their product and they said ok and let me be. They were always professional on the phone. -----Original Message----- From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Andy Davidson Sent: Tuesday, November 28, 2006 6:42 AM To: nanog(a)merit.edu Subject: OT: How to stop UltraDNS sales people calling Hi, I am really fed up of calls from UltraDNS - we seem to get them every few days. We don't need their product. We've tried saying no, and additionally we've tried putting people on hold indefinitely, trying to be enough of a nuisance to drop off their sales call list (works with UK telcos - try it). I just had a guy on hold for 18 minutes before taking him off hold to say that we didn't want their product, and could he please stop calling. He told me he would still calling until he got through to the right person. I am the right person. In the interest of Anglo-American relationships - any Neustar people on list willing to help ?

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Increase in NANOG Meeting Attendance Fees
by Joe Abley 29 Nov '06

29 Nov '06

[sent to nanog-futures@, bcc'ing nanog-announce@, apologies for duplicates] During the past several community meetings, Merit have presented accounts for NANOG which show that revenue from membership fees and sponsorship are not sufficient to cover costs, despite substantial measures taken by Merit over the past several meetings to reduce the overhead involved in NANOG activities. Recent efforts to plan ahead and arrange meeting venues up to 18 months in the future have provided additional financial pressure, since hotels require substantial deposits. Extending the length of the meeting from Sunday-Tuesday to Sunday-Wednesday has also contributed to increased costs, as have the improvements in network infrastructure which have been evident at recent meetings. Revenue has not increased to offset these additional costs. Merit and the SC are together working on changes to the sponsorship structure at NANOG meetings in order to increase the value to sponsors from participating with the goal of increasing meeting revenue. Changes will take some time to implement, however, and are by their nature somewhat speculative since the benefits of the changes will not be really apparent until they have been implemented. At past community meetings, people have clearly expressed that modest increases in meeting fees would not present significant barriers to meeting attendance, so long as the other costs of attending (hotel block rates, travel, etc) were maintained at current levels. NANOG meeting fees are low when compared to other, similar events. The current meeting fee of $350 has been in place since NANOG 28 in June 2003. Both Merit and the SC are committed to finding a sustainable funding model which will ensure that NANOG continues to be a viable community resource for many years to come, and is predictably and reliably self- sustaining for the benefit of all participants. In their meeting on Wednesday 2006-11-22 the Steering Committee approved an increase of NANOG meeting attendance fees from $350 to $450. This will be implemented for NANOG 39 in Toronto. Further discussion of funding models and related topics is encouraged, and should take place on the nanog-futures mailing list. Please see <http://www.nanog.org/email.html> for subscription instructions. Joe Abley for the SC

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OT: How to stop UltraDNS sales people calling
by Andy Davidson 29 Nov '06

29 Nov '06

Hi, I am really fed up of calls from UltraDNS - we seem to get them every few days. We don't need their product. We've tried saying no, and additionally we've tried putting people on hold indefinitely, trying to be enough of a nuisance to drop off their sales call list (works with UK telcos - try it). I just had a guy on hold for 18 minutes before taking him off hold to say that we didn't want their product, and could he please stop calling. He told me he would still calling until he got through to the right person. I am the right person. In the interest of Anglo-American relationships - any Neustar people on list willing to help ?

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Re: BGP analyzing tool
by Kanagaraj Krishna 29 Nov '06

29 Nov '06

Using cli like "sh ip bgp xxx.xxx.xxx.xxx"[Cisco] or "sh route protocol bgp xxx.xxx.xxx.xxx detail" [Juniper] would be able to show me details for specific destinations. What i need is a software to get all the data from a routers routing table, analyze the best path and summarize the reason why its being chosen based on the BGP algorithm (local pref, no. of hops, MED, etc). That would show the big picture of why a certain upstream is more prefered than the other. Thanks. Regards, Kana ----- Original Message ----- From: Doug Marschke To: 'Kanagaraj Krishna' Sent: Wednesday, November 22, 2006 10:09 AM Subject: RE: BGP analyzing tool What kind of router? A juniper will show you this with a show route detail. Doug -----Original Message----- From: owner-nanog(a)merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Kanagaraj Krishna Sent: Tuesday, November 21, 2006 6:27 AM To: nanog(a)merit.edu Subject: Re: BGP analyzing tool Hi, Are there any available BGP analyzing tool that can be used to identify details on best chosen path based on the BGP algorithm? NTOP can capture the traffic info, but to analyze each destination to find the reason for selection (local preference, no of AS hops, iBGP vs eBGP etc) would be hard. I need this info to understand why a certain upstream is being more prefered than the others. Thanks. Regards, Kana

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OT Juniper parts
by J. Oquendo 28 Nov '06

28 Nov '06

Anyone know a reputable place where I can get 6 Juniper P-1GE-SX's -- ==================================================== J. Oquendo http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x1383A743 sil . infiltrated @ net http://www.infiltrated.net The happiness of society is the end of government. John Adams

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network maintenance notification .pl scripts?
by Mike Lyon 27 Nov '06

27 Nov '06

Howdy, Figured before I re-invent the wheel here I would ask to see if anyone has a simple .pl script where one would enter their maintenance data into a webpage and press enter and it would spit out a handy maintenance notice that you could cut/paste it into an e-mail. Anyone? -Mike

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analyse tcpdump output
by Stefan Hegger 27 Nov '06

27 Nov '06

Hi, I wonder if someone knows a tool to use a tcpdump output for anomaly dedection. It is sometimes really time consuming when looking for identical patterns in the tcpdump output. It would be helpful to get a diff between SYN and ACK's e.g. Or look for a pattern in a URL. Or just get some timediffs e.g. when an ACK is send but client is waiting for data etc. We would like to decrease time to investigate the cause for an unusual network behaviour. Best Stefan -- Stefan Hegger Internet System Engineer Stefan.Hegger(a)lycos-europe.com Tel: +49 5241 8071 334 Lycos Europe GmbH Carl-Bertelsmann Str. 29 Postfach 315 33311 Gütersloh

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