From mboxrd@z Thu Jan  1 00:00:00 1970
From: Antony Stone <Antony@Soft-Solutions.co.uk>
Subject: Re: iptables-1.2.9, kernel-2.6.0, pppd-2.4.2
Date: Wed, 31 Dec 2003 12:03:31 +0000
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On Wednesday 31 December 2003 7:37 am, zhang ping wrote:

> ----adsl----linuxbox----lan
>
> pppd-2.4.2 (use kernel mode pppoe)
> iptables-1.2.9
> kernel-2.6.0
>
> when I visit www.zaobao.com at lan, it is ok, but I cant visit
> www.kernel.org, so qi guai.
>
> when i set mtu as 1300 at lan, everthins is ok, i can visit all sites.
>
> what is the matter, anybody help me?

This problem has been known for a long time.   You need to clamp the MTU on 
your interface to the Maximum Segment Size supported by your ADSL link.

http://lists.netfilter.org/pipermail/netfilter/2003-November/048409.html

Antony.

-- 
Anyone that's normal doesn't really achieve much.

 - Mark Blair, Australian rocket engineer

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