Subject: Re: ip reassembly time exceeded?
To: Jukka Marin <>
From: Curt Sampson <>
List: current-users
Date: 01/27/1997 08:35:04
On Mon, 27 Jan 1997, Jukka Marin wrote:

> I had MTU of 296 bytes on the PPP link on my router machine.  When I changed
> it to 576, things started working (it seems).  I heard that this is the
> minimum length specified for IP packets.

This appears to be some sort of TCP problem. I too ran my PPP link
with an MTU of 296 bytes for some time, and I noticed that connections
to and from the routing machine (a Sun 3--the remote end is a
Livingston Portmaster) were fine, but another machine on my local
area network (this one running Windows 95) was having huge problems
downloading web pages; it was getting ridiculously slow rates,
probably due to dropped packets. Setting the MTU above 576 fixed

This should probably be investigated further.


Curt Sampson		Info at
Internet Portal Services, Inc.	
Vancouver, BC   (604) 257-9400		De gustibus, aut bene aut nihil.