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Date:      Wed, 12 Jul 2000 09:20:15 -0500
From:      Dan Nelson <dnelson@emsphone.com>
To:        Joao Pagaime <jpsp@rccn.net>
Cc:        freebsd-questions@FreeBSD.ORG, freebsd-isp@FreeBSD.ORG
Subject:   Re: Enable SACK
Message-ID:  <20000712092015.A17517@dan.emsphone.com>
In-Reply-To: <Pine.BSF.4.21.0007121440500.31000-100000@atlas.rccn.net>; from "Joao Pagaime" on Wed Jul 12 14:52:18 GMT 2000
References:  <Pine.BSF.4.21.0007121440500.31000-100000@atlas.rccn.net>

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In the last episode (Jul 12), Joao Pagaime said:
> 
> How do I enable selective acknowledges (rfc2018/SACK) on a fBSD3.3 ?
> 
> I can't find anything interesting with "sysctl", nor in the LINT
> kernel configuration file, however there's a lot of references to it
> on the kernel source files.
> 	I enabled rfc1323 but I believe this doesn't directly activate
> elective acknowledges (at least rfc1323 states so).

FreeBSD doesn't support TCP SACK, unfortunately.  Luigi Rizzo had
patches that added it for 2.1.0, but they were never committed, and I
couldn't get them to apply correctly after 3.0.

-- 
	Dan Nelson
	dnelson@emsphone.com


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