nanog mailing list archives
Re: IPv6 day and tunnels
From: Joe Maimon <jmaimon () ttec com>
Date: Sun, 03 Jun 2012 22:05:40 -0400
Joe Maimon wrote:
Looks like a tunnel mtu issue. I have not as of yet traced the definitive culprit, who is (not) sending ICMP too big, who is (not) receiving them, etc.
The culprit is the v6 tunnel, which wanders into v4 ipsec/gre tunnels, which means the best fix is ipv6 mtu 1280 on the tunnels, and possibly on the hosts. PMTUD works fine, just comes up with the wrong answer.
1280, the new 1500.
Joe
Current thread:
- Re: IPv6 day and tunnels, (continued)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 12)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 12)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 12)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 12)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 12)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 12)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 19)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 19)
- Re: IPv6 day and tunnels Joe Maimon (Jun 04)
- Re: IPv6 day and tunnels Cameron Byrne (Jun 04)
- Re: IPv6 day and tunnels bmanning (Jun 03)
- Re: IPv6 day and tunnels Jeroen Massar (Jun 03)
- Re: IPv6 day and tunnels Jeroen Massar (Jun 03)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 04)
- Re: IPv6 day and tunnels Jeroen Massar (Jun 04)
- Re: IPv6 day and tunnels Jared Mauch (Jun 04)
- Re: IPv6 day and tunnels Jeroen Massar (Jun 04)