From owner-freebsd-questions  Wed Feb 20  2:15:23 2002
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From: "Alex Dyas" <alexdyas@hotmail.com>
To: freebsd-questions@freebsd.org
Subject: TCP zero-sized window bug fixed in 4.5?
Date: Wed, 20 Feb 2002 10:15:21 +0000
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hi all,

I've been having problems telnetting across a firewall with FreeBSD.  The 
problem manifests itself as a ~8 second delay during a telnet session across 
the firewall to another box.  TCPDumps have shown that it may have something 
to do with zero sized TCP windows.  I was thus happy to read the following 
in the 4.5 release notes:

"A bug in the TCP implementation, which could cause connections to stall if 
a sender saw a zero-sized window, has been corrected."

This sounded spot on.  However, having installed 4.5 the problem still seems 
to be there.

My question is does anyone know more about this bug, or where I could find 
more information on it?  I'm wondering if it was actually fixed, or if I 
need to change my config in any way to take advantage of the fix.

Thanks,

alex...

"Mr. Watson. Come here. I need you."

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