From: David Brownell <david-b@pacbell.net>
To: David Ford <david+challenge-response@blue-labs.org>
Subject: Re: Linux 2.6.11-rc2
Date: Tue, 25 Jan 2005 10:54:36 -0800
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On Tuesday 25 January 2005 10:35 am, David Ford wrote:
> PMTU bug -- or better said, bad firewall admin who blocks all ICMP.

PMTU bug, sure -- but one that came late in RC2.  Remember:  same firewall
in both cases, but only RC2 breaks.  The ICMP packet has landed in
the RC2 system, which ignores it.  2.6.10 handled it correctly... I
suspect one of the TCP cleanups borked this.

My current workaround is "ifconfig eth0 mtu 1492" but that's not
something I'd expect to keep.

- Dave


> http://blue-labs.org/clue/mtu-mss.php
> 
> -david
> 
> David Brownell wrote:
> 
> >I'm seeing a problem with TCP as accessed through KMail (SuSE 9.2, x86_64).
> >But oddly enough, only for sending mail, not reading it; and not through
> >other (reading) applications... it's a regression with respect to rc1 and
> >earlier kernels.  Basically, it can only send REALLY TINY emails...
> >
> >  
> >
> 
-
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