Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 15 Jun 2000 22:12:37 -0400 (EDT)
From:      David Gilbert <dgilbert@velocet.ca>
To:        "Patrick Bihan-Faou" <patrick@mindstep.com>
Cc:        "David Gilbert" <dgilbert@velocet.ca>, <freebsd-net@freebsd.org>
Subject:   Re: "frag-anyways" knob.
Message-ID:  <14665.36117.612647.826276@trooper.velocet.net>
In-Reply-To: <010701bfd718$5917c460$040aa8c0@local.mindstep.com>
References:  <14664.60992.300592.147710@trooper.velocet.net> <010701bfd718$5917c460$040aa8c0@local.mindstep.com>

next in thread | previous in thread | raw e-mail | index | archive | help
>>>>> "Patrick" == Patrick Bihan-Faou <patrick@mindstep.com> writes:

Patrick> Hi, Is your problem related to the PPPoE bug that some people
Patrick> face where windows machine behind a NAT FreeBSD box seem to
Patrick> not be able to reach some web sites but do fine with others ?

This is related (we have to deal with PPPoE as well), but there are
other technologies (VLAN and ATM) that are causing us heartburn at the 
momment.

Patrick> I am working on a patch for natd/libalias that modifies the
Patrick> MSS option for outbound TCP packets and sets that to a value
Patrick> acceptable for the PPPoE link.  This means that you don't

Our experience is that not all TCP stacks are listening to MSS.  Still 
other applications (many online games) _depend_ on 1500 byte packets.
I think that the MSS hack is cool --- it would definately address the
small drop in efficiency that frag-anyways would create, but I still
believe the frag-anyways to be necessary due to the number of broken
protocols out there.

Patrick> I am currently testing the hack at my friends place, once I
Patrick> get it working I'll submit the patch. Let me know if you want
Patrick> to use it.

I would appretiate a copy, yes.

Dave.

-- 
============================================================================
|David Gilbert, Velocet Communications.       | Two things can only be     |
|Mail:       dgilbert@velocet.net             |  equal if and only if they |
|http://www.velocet.net/~dgilbert             |   are precisely opposite.  |
=========================================================GLO================


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-net" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?14665.36117.612647.826276>