Date: Mon, 15 May 2006 07:52:14 +0100 From: David Malone <dwmalone@maths.tcd.ie> To: Max Laier <mlaier@FreeBSD.org> Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/netinet ip_fw2.c Message-ID: <20060515065214.GA63472@walton.maths.tcd.ie> In-Reply-To: <200605142342.k4ENgOli009466@repoman.freebsd.org> References: <200605142342.k4ENgOli009466@repoman.freebsd.org>
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On Sun, May 14, 2006 at 11:42:24PM +0000, Max Laier wrote: > Use only lower 64bit of src/dest (and src/dest port) for hashing of IPv6 > connections and get rid of the flow_id as it is not guaranteed to be stable > some (most?) current implementations seem to just zero it out. I had a look at how constant the IPv6 Flow ID is with Orla McGann about a year ago: http://www.maths.tcd.ie/~dwmalone/p/ec2nd05.pdf We used to screw up the setting of it on SYN|ACK packets, but we should do it right now. I think NetBSD had a very similar looking bug. When I last checked OpenBSD just set it to zero. I think Solaris DTRT. David.
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