Date: Wed, 15 Nov 2006 09:44:59 +0000 From: David Malone <dwmalone@maths.tcd.ie> To: Kris Kennaway <kris@obsecurity.org> Cc: current@FreeBSD.org Subject: Re: ipfw breaks nfs over udp6 Message-ID: <20061115094459.GA18538@walton.maths.tcd.ie> In-Reply-To: <20061115000551.GA93547@xor.obsecurity.org> References: <20061115000551.GA93547@xor.obsecurity.org>
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On Tue, Nov 14, 2006 at 07:05:51PM -0500, Kris Kennaway wrote: > I tried to mount nfs over udp6 from a local host, but nfs traffic > makes ipfw cry: > > ipfw: pullup failed > ipfw: pullup failed > ipfw: pullup failed > ... > > and nfs traffic is wedged. I'm guessing this is something to do with sending fragmented UDP packets. Looking at the ipfw2 code for dealing with IPv6 fragments, I think there's definitely a problem of some sort, but I can't see what the intended behaviour is yet. David.
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