Date: Tue, 21 Aug 2007 16:16:51 +0200 From: Jacek Zapala <jacek@ipv6.jacek.it.pl> To: Daniel Hartmeier <daniel@benzedrine.cx> Cc: freebsd-net@freebsd.org Subject: Re: kern/115413: [ipv6] ipv6 pmtu not working Message-ID: <1187705811.30269.5.camel@localhost.localdomain> In-Reply-To: <20070821135048.GA32421@insomnia.benzedrine.cx> References: <200708211010.l7LAA6V7082258@freefall.freebsd.org> <20070821121118.GF27160@insomnia.benzedrine.cx> <1187703472.22531.4.camel@localhost.localdomain> <20070821135048.GA32421@insomnia.benzedrine.cx>
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On Tue, 2007-08-21 at 15:50 +0200, Daniel Hartmeier wrote: > Since you're using TCP window scaling, could you try disabling that > (sysctl net.inet.tcp.rfc1323=0 on either peer), and see if it affects > things? Just to make sure that's not a part of the problem. Good guess! I have disabled this on sending side (FreeBSD) and it started to work! Btw, how can I examine the route mtu cache? In older FreeBSD netstat -ranW showed cloned routes and their mtus, but this is no longer the case with FreeBSD 6.2. Jacek
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