Gentoo Archives: gentoo-desktop

From: Lindsay Haisley <fmouse-gentoo@×××.com>
To: gentoo-desktop@l.g.o
Subject: Re: [gentoo-desktop] python.org and ipv6
Date: Sat, 16 May 2009 18:25:17
Message-Id: 1242498305.27501.163.camel@vishnu.fmp.com
In Reply to: Re: [gentoo-desktop] python.org and ipv6 by Tom Fifield
1 On Sat, 2009-05-16 at 14:15 +1000, Tom Fifield wrote:
2 > I see an MTU of 1280 to www.python.org at my end - ipv6 tun device on my
3 > router is set to this, so I think it can deal with the 1500 MTU on my
4 > local machine's interface. Nice spotting :)
5
6 I set the MTU on the LAN IF of my desktop system to 1400, down from 1500
7 and everything worked OK. The LAN IF of my router is set to 1500 and
8 the sit1 v6->v4 IF has an MTU of 1280. The tunnel broker may not be
9 doing MTU discovery, or something else may be wonky. If it works, don't
10 fix it :-)
11
12 I've seen a similar problem on VPN tunnels using UDP packets.
13
14 --
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