Subject: Re: Can't access NetBSD website after switch to PPPoE
To: Steven Sartorius <ssartor@bellatlantic.net>
From: Mirko Thiesen <thiesi@ReLink.NetWorkXXIII.de>
List: netbsd-users
Date: 03/11/2004 04:20:19
On Wed, 10 Mar 2004, Steven Sartorius wrote:
> Hi,
Hi Steven,
> 10/03/2004 21:45:14.383215 pppoe0 @0:3 b 204.152.184.116 ->
> 138.89.34.68 PR tcp len 20 (28) frag 8@1472 IN
> 10/03/2004 21:45:34.882516 pppoe0 @0:3 b 204.152.184.116 ->
> 138.89.34.68 PR tcp len 20 (28) frag 8@1472 IN
> 10/03/2004 21:46:18.381955 pppoe0 @0:3 b 204.152.184.116 ->
> 138.89.34.68 PR tcp len 20 (28) frag 8@1472 IN
> 10/03/2004 21:46:38.881335 pppoe0 @0:3 b 204.152.184.116 ->
> 138.89.34.68 PR tcp len 20 (28) frag 8@1472 IN
> 10/03/2004 21:47:22.380782 pppoe0 @0:3 b 204.152.184.116 ->
> 138.89.34.68 PR tcp len 20 (28) frag 8@1472 IN
as you can see in the above posted log the data packets coming from your
system get fragmented at 1472 bytes (which is quite common for PPPoE
setups). Read the section about MTU in the pppoe manpage, and be sure to
set an appropriate (= low) MTU value on your pppoe0 interface. If you've
got more than this system and your NetBSD box acts as a router, it might
be advisable to change the MTU value of your entire network, too.
Bye, K&K,
T-Zee
--
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