Date: Mon, 22 Mar 1999 14:46:01 -0800 From: Charles Henrich <henrich@flnet.com> To: freebsd-hackers@freebsd.org, freebsd-net@freebsd.org Subject: NAT/SKIP/MTU Message-ID: <19990322144600.A17340@orbit.flnet.com>
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I've run into ap roblem where Im attempting to do both NAT and SKIP on the
same machine... However whenever the MTU of the internal (net 10) interface is
less than 1500, packets are either dropped or never reassembled properly
causing communication with a variety of internet hosts to be broken. SKIP
alters the MTU to 1336 (I'm assuming to make space in the packet for the
encryption overhead)... When it does this though, everything goes to hell.
Has anyone else out there seen this problem and come up with a solution? Is
this a FreeBSD networking issue, or is it a problem with NAT, or even worse,
is this a problem with other hosts on the network not being able to cope with
a different MTU? (I initially noticed this problem with travelocity, and
expedia's web sites..)
Thanks for any info!
-Crh
Charles Henrich Manex Visual Effects henrich@flnet.com
http://orbit.flnet.com/~henrich
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