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Date: Sun, 31 Dec 2000 15:33:36 -0500 (EST)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
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To: "C. Stephen Gunn" <csg@waterspout.com>
Cc: Andrea Franceschini <andrea@cs.tin.it>,
	Ferdinand Goldmann <ferdl@atommuell.oeh.uni-linz.ac.at>,
	"freebsd-net@FreeBSD.ORG" <freebsd-net@FreeBSD.ORG>
Subject: Re: Problems with VLAN and natd.
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<<On Sat, 30 Dec 2000 00:46:46 -0500, "C. Stephen Gunn" <csg@waterspout.com> said:

> Yes, ifconfig <if> mtu 1500 is what you want.

Actually, no, it's not what you want (although the underlying code is
broken enough to let it ``work'' anyway).  What you want is to fix the
parent network interface driver to indicate its readiness to receive
1522-octet frames by setting its if_data.ifi_hdrlen field to 18 rather
than 14.

-GAWollman



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