Subject: Re: [PATCH] fix tcp_default_win_scale.

From: "David S. Miller" <[email-masked]>
Date: Tue, 6 Jul 2004 13:28:22 -0700

On Tue, 6 Jul 2004 13:05:49 -0700
Stephen Hemminger <[email-masked]> wrote:

> On Tue, 6 Jul 2004 20:40:34 +0100
> Jamie Lokier <[email-masked]> wrote:
> 
> > Are you saying there are broken firewalls which strip TCP options in
> > one direction only?
> 
> It appears so.

Ok, this is a possibility.  And why it breaks is that if the ACK
for the SYN+ACK comes back, the SYN+ACK sender can only assume
that the window scale was accepted.

Stephen, do you have a trace showing exactly this?