pmtud + ipnat RELENG_6_2 appears to be broken

[Andrew Thompson]

On Wed, Jul 25, 2007 at 12:54:30PM +0100, Pete French wrote:
> > lagg on RELENG_6 is currently broken due to subtle differences that
> > wernt taken into account when it was MFCd. Can you please test this
> > patch.
> 
> Erp! Do you have any mor einfo on tyhis - what kinds of things does
> this break ? Since lagg arrived I have deployed it on all our production
> machines. It seems to work fine for me, I have to say, but I would like to
> know what problems I might be about to encounter.
> 
> Will apply and test your patch (though having seen no problems anyway I
> am not sure how useful that will be).

The MAC address was not set correctly on the lagg interface so all
outgoing frames have the src of 00:00:00:00:00:00. This still worked in
a lot of situations as the machine replied with the correct arp address
and the configured laggports had the correct MAC.

Most people didnt see a problem which is why this slipped through.
tcpdump on another host with the -e flag and see what the src mac is.


Andrew