tech-net: Re: MSS doesn't honour route MTU

Subject: Re: MSS doesn't honour route MTU
To: None <tech-net@netbsd.org>
From: Rui Paulo <rpaulo@fnop.net>
List: tech-net
Date: 06/08/2006 22:04:34

At Thu, 8 Jun 2006 22:58:34 +0200 (CEST),
Hubert Feyrer wrote:
> 
> On Thu, 8 Jun 2006, Rui Paulo wrote:
> >> mpls# route add -mtu 1200 198.133.219.25 193.28.151.1
> >> add host 198.133.219.25: gateway 193.28.151.1
> >> mpls# route -n get 198.133.219.25
> ...
> >>  recvpipe  sendpipe  ssthresh  rtt,msec    rttvar  hopcount      mtu
> >> expire
> > My guess is that route -mtu doesn't work as it should.
> 
> At least 'route get' showed the right MTU...

Yeah, but in the end it failed to advertise the correct Maximum
Segment Size in the TCP header.