Date: Tue, 23 Mar 1999 10:24:34 -0800 From: Charles Henrich <henrich@flnet.com> To: Jim Flowers <jflowers@ezo.net> Cc: Matthew Reimer <mreimer@vpop.net>, freebsd-hackers@FreeBSD.ORG Subject: Re: NAT/SKIP/MTU Message-ID: <19990323102434.B9273@orbit.flnet.com> In-Reply-To: <001301be755a$0eed6d20$23b197ce@ezo.net>; from Jim Flowers on Tue, Mar 23, 1999 at 01:21:21PM -0500 References: <lists.freebsd.hackers.19990322144600.A17340@orbit.flnet.com> <36F6D023.1925D6D5@vpop.net> <001301be74ce$d63efdd0$23b197ce@ezo.net> <19990323100221.D8398@orbit.flnet.com> <001301be755a$0eed6d20$23b197ce@ezo.net>
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On the subject of Re: NAT/SKIP/MTU, Jim Flowers stated:
> Skip definitely alters the mtu downward that it presents for discovery in
> order to allow for the increased size of the outbound encapsulated packets
> without causing fragmentation. This is described in one of the white papers
> that comes with it. Have you tried setting the mtu of the skip interface
> down to something like 756? I had to do this for cvsup (< 1300) to work
> reliably although I didn't ascribe the problem to SKIP at the time because
> it goes through the NAT path but it still has to go through the SKIP ACL in
> cleartext. - might have been. This should have the effect of causing
> smaller packets to be received.
I've completely removed skip from all interfaces and I still see the problems
with NAT or FreeBSD when I alter the mtu..
-Crh
Charles Henrich Manex Visual Effects henrich@flnet.com
http://orbit.flnet.com/~henrich
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