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Date: Wed, 29 Nov 2000 21:57:37 -0800
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From: "David S. Miller" <davem@redhat.com>
To: mes@capelazo.com
CC: linux-kernel@vger.kernel.org
In-Reply-To: <Pine.GSO.4.10.10011292033380.27791-100000@lazo.capelazo.com>
        (message from Mark Sutton on Wed, 29 Nov 2000 20:53:32 -0800 (PST))
Subject: Re: TCP header bits set in reserved space
In-Reply-To: <Pine.GSO.4.10.10011292033380.27791-100000@lazo.capelazo.com>
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   Date:   Wed, 29 Nov 2000 20:53:32 -0800 (PST)
   From: Mark Sutton <mes@capelazo.com>
				 ^^
   This packet is never ACK'd by www.sun.com and the only difference I
   can see from one that is are these two bits. RFC793 says they must be zero.
   Is 793 still current? Has anyone else seen this?

ECN, RFC2481

Turn it off with /proc/sys/net/ipv4/tcp_ecn or tell Sun to update the
software running on their firewall.

Later,
David S. Miller
davem@redhat.com
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