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Date: Wed, 27 Jun 2001 14:52:49 -0500
From: Glenn Johnson <gjohnson@srrc.ars.usda.gov>
To: Jonathan Lemon <jlemon@flugsvamp.com>
Cc: net@freebsd.org, kris@freebsd.org
Subject: Re: select fails to return incoming connect on FreeBSD-4.3
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References: <local.mail.freebsd-net/20010611131207.A39225@node7.cluster.srrc.usda.gov> <200106111937.f5BJb9o99898@prism.flugsvamp.com>
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In-Reply-To: <200106111937.f5BJb9o99898@prism.flugsvamp.com>; from jlemon@flugsvamp.com on Mon, Jun 11, 2001 at 02:37:10PM -0500
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On Mon, Jun 11, 2001 at 02:37:10PM -0500, Jonathan Lemon wrote:

> >Could someone take a look at PR misc/27880?
>
> This was broken by the initial sequence number patch to TCP.
>
> When the server closes the socket, it puts the entry into the
> TIME_WAIT state.  When a new SYN is received from the client while the
> socket is in this state, the new connection is only accepted if the
> new sequence number is > than the old one.
>
> Unfortunately, with a randomized seqence #, the new connection ISN may
> be less than the old sequence used, and the SYN will be ignored.
>
> I've copied this over to kris, who (IIRC) brought in the new sequence
> numbering.

Has anyone had a chance to look at this and figure out what the fix
might be?

Thanks.

-- 
Glenn Johnson
USDA, ARS, SRRC			 Phone: (504) 286-4252
New Orleans, LA 70124		e-mail: gjohnson@srrc.ars.usda.gov

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