November 2011 - Test - lists.nanog.org

XO blocking individual IP's
by clayton＠haydel.org 08 Nov '11

08 Nov '11

I'm hoping someone has had the same experiences, and is further toward a resolution on this than I am. About 6 months ago, we noticed that XO was blackholing one specific IP out of a /24. Traces to that IP stopped on XO's network, traces to anything else out of the block went through fine. XO finally admitted that they had a new security system that identifies suspicious traffic and automatically blocks the IP for 30 minutes. We had to get the IP in question "whitelisted" by their security guys. The traffic was all legit, it was just on a high port # that they considered suspicious. There have several more cases like this, and XO has not been forthcoming with information. We're either looking to be exempted from this filtering or at least get a detailed description of how the system works. I'm not sure how they think this is acceptable from a major transit provider. Anybody else had similar problems? Clayton Haydel

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IPv6World:Asia - Deployment Experience with IPv6
by Joly MacFie 08 Nov '11

08 Nov '11

For any of you who are working late, we are just about to start (2am-4am EST) a live webcast of a "Deployment Experience with IPv6" event from Hong Kong. Fred Baker is the keynote speaker. Webcast: http://www.livestream.com/internetsocietychapters/ More info: http://isoc-ny.org/p2/?p=2630 -- --------------------------------------------------------------- Joly MacFie 218 565 9365 Skype:punkcast WWWhatsup NYC - http://wwwhatsup.com http://pinstand.com - http://punkcast.com VP (Admin) - ISOC-NY - http://isoc-ny.org -------------------------------------------------------------- -

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Re: [outages] Time Warner Cable outage
by Jay Ashworth 07 Nov '11

07 Nov '11

----- Original Message ----- > From: "Dustin Rhodes" <DRhodes(a)fiberutilities.com> > Sounded like someone was broadcasting a BGP route with an invalid > attribute and caused BGP session restarts or Core Dumps/crashes on any > Juniper router running version 10.4 Well, it *is* getting on towards Christmas... Cheers, -- jr '*really*, Juniper?' a -- Jay R. Ashworth Baylink jra(a)baylink.com Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA http://photo.imageinc.us +1 727 647 1274

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RE: Cell-based OOB management devices
by ebarrios＠gobarrios.com 07 Nov '11

07 Nov '11

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Re: Cell-based OOB management devices
by Edward Salonia 07 Nov '11

07 Nov '11

I would look into Uplogix. I've seen them demo their products at Cisco Live a couple of times and they seem very good. - You can connect a cellular modem to them. - They can store backup device configs. - They can store IOS images. - They can even xmodem an image to a device if it gets stuck in ROMMON. - Some of this can even be automated by their device. ------Original Message------ From: David Hubbard To: nanog(a)nanog.org Subject: Cell-based OOB management devices Sent: Nov 7, 2011 1:14 AM Hi all, I am looking at cellular-based devices as a higher speed alternative to dial-up backup access methods for out of band management during emergencies. I was wondering if anyone had experiences with such devices they could share? Devices I've found include Sierra Wireless AirLink Raven X, Digi's ConnectWAN 3G or 4G and Opengear's ACM5004-G. I have no experience with any but they all appear to support the Sprint network which I assume would be ideal due to not having usage caps on data (currently). The Opengear device runs linux and has four serial ports, a usb port for additional storage and ethernet, so it seems to have some small advantages over the others since it could double as an emergency self-contained management station you can SSH into and run diagnostics from. All appear to have VPN/gateway support. What none of them are clear on is how you would connect to it over cellular since I assume you're just paying for a typical data plan and it will randomly obtain IP addresses. Maybe some type of dynamic dns service so you can easily figure out your device's current IP? How stable is the access to the device? Any idea if any of them can do ipv6? Thanks! David

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IPv6 beta support for Android phones
by Cameron Byrne 07 Nov '11

07 Nov '11

FYI. T-Mobile USA now has opt-in beta support for an Android phone on IPv6, more info here https://sites.google.com/site/tmoipv6/lg-mytouch As far as i know, this is the first Android phone that support IPv6 on the GSM/UMTS mobile interface. Previous version of Android phones supported IPv6 on WiFi and LTE. Cameron

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TATA problems?
by Todd Snyder 07 Nov '11

07 Nov '11

We seem to be having some problems with our tata links - first seen in EU about 45 minutes ago, now we're seeing problems in NA. I'm focused on DNS, so I'm seeing a lot of timeouts/servfails, but our networking folks are talking about links dropping. Anyone else seeing oddness on the NA Internet right now? http://downrightnow.com/ confirms - something is up. cheers, t.

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mtu question. more should be better, right?
by Deric Kwok 07 Nov '11

07 Nov '11

Hi all When I setup the server mtu as 9100. why I have to configure the switch mtu 9300 to make it working? What this extra 200 bytes is for what purpose? ls it standard? What is disadvantage of setting our all internal networks (host / equipment) mtu more than 1500? Thank you for your advice.

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Router and interface naming convention survey
by Joseph Chabarek 07 Nov '11

07 Nov '11

I am doing a survey to see what naming conventions are used for routers and router interfaces as part of a measurement study that I am conducting as a student at the University of Wisconsin Madison. If you are interested in participating please fill out my form at: https://docs.google.com/spreadsheet/viewform?formkey=dE1OYmVGcjlxV1YtZjB1Qm… I am aware that this issue has been discussed extensively on nanog (and other lists). The purpose of this survey is to see in a structured manner which networks use which conventions, and get an idea for how automated the process of PTR record generation is across different providers. I am happy to provide high level results from the survey to anyone that is interested. Thanks for any feedback! -Joe http://www.cs.wisc.edu/~jpchaba

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Time Warner Telecom problems
by Peter Pauly 07 Nov '11

07 Nov '11

Gizmodo is reporting problems at Time Warner Telecom .... we're suffering from it too and calls to the NOC have not been answered so far... does anyone have any further information? http://gizmodo.com/5857010/massive-time-warner-outage-hits-the-us

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