nanog mailing list archives
Re: MTU issues s0.wp.com
From: Jeroen Massar <jeroen () unfix org>
Date: Tue, 06 Nov 2012 15:11:49 +0100
On 2012-11-06 13:33, Seth Mos wrote:
Hi, Since about a week or so it's become impossible to reach wp.com content over IPv6. IPv4 content does work fine, using the IPv6 literal returns a 404 which is small enough to fit in a smaller 1480 byte MTU. I have another test site that has a clean 1500 byte mtu and I can fetch the s0.wp.com page from there. It looks like tunneled IPv6 users might be in hurt here.
tracepath and scapy are the tools of choice here to determine where pMTU messages go missing. Also, it would be very useful to have a source address when reporting these issues as it might affect a lot of other paths too. Greets, Jeroen
Current thread:
- MTU issues s0.wp.com Seth Mos (Nov 06)
- Re: MTU issues s0.wp.com Timothy Morizot (Nov 06)
- Re: MTU issues s0.wp.com sthaug (Nov 06)
- Re: MTU issues s0.wp.com Jeroen Massar (Nov 06)
- Re: MTU issues s0.wp.com Matthew Luckie (Nov 06)
- Re: MTU issues s0.wp.com Brian Keefer (Nov 07)
- Re: MTU issues s0.wp.com Tassos Chatzithomaoglou (Nov 08)