nanog mailing list archives
Re: Too bigs are sacred, was: Re: IPv6 addressing for core network
From: David Freedman <david.freedman () uk clara net>
Date: Wed, 09 Feb 2011 17:50:35 +0000
Iljitsch van Beijnum wrote:
On 9 feb 2011, at 18:30, David Freedman wrote:(yes, even ICMP TOOBIG can be filtered safely if you have designed things in a sane way)NO. Even if you run with 1280-byte MTUs everywhere so you'd think path MTU discovery wouldn't be needed, this can still cause problems with IPv6-to-IPv4 translators.
Calm down, I think you misunderstand, I'm suggesting that you don't design your infrastructure in such a way that your backbone/infrastructure links ever have to receive TOOBIG messages from outside your AS and work with these, your backbone links are of course free to send TOOBIG out! Dave. -- David Freedman Group Network Engineering Claranet Group
Current thread:
- Re: IPv6 addressing for core network, (continued)
- Re: IPv6 addressing for core network sthaug (Feb 09)
- Re: IPv6 addressing for core network Iljitsch van Beijnum (Feb 09)
- Re: IPv6 addressing for core network sthaug (Feb 09)
- Re: IPv6 addressing for core network Mohacsi Janos (Feb 09)
- Re: IPv6 addressing for core network sthaug (Feb 09)
- Re: IPv6 addressing for core network Iljitsch van Beijnum (Feb 09)
- Re: IPv6 addressing for core network sthaug (Feb 09)
- Re: IPv6 addressing for core network Sam Stickland (Feb 09)
- Re: IPv6 addressing for core network sthaug (Feb 09)
- Re: IPv6 addressing for core network David Freedman (Feb 09)
- Too bigs are sacred, was: Re: IPv6 addressing for core network Iljitsch van Beijnum (Feb 09)
- Re: Too bigs are sacred, was: Re: IPv6 addressing for core network David Freedman (Feb 09)
- Re: Too bigs are sacred, was: Re: IPv6 addressing for core network Owen DeLong (Feb 09)
- Re: Too bigs are sacred, was: Re: IPv6 addressing for core network David Freedman (Feb 09)
- Re: Too bigs are sacred, was: Re: IPv6 addressing for core network Iljitsch van Beijnum (Feb 10)
- Re: Too bigs are sacred, was: Re: IPv6 addressing for core network David Freedman (Feb 10)
- Re: Too bigs are sacred, was: Re: IPv6 addressing for core network Valdis . Kletnieks (Feb 10)
- Re: IPv6 addressing for core network Owen DeLong (Feb 09)