At Wed, 13 Jul 2005 15:00:42 +0200, Jeremie Le Hen wrote: > > Hi, > > I set a gif(4)-based IPSec tunnel between my network and a friend's one. > This works pretty well, except that Path MTU Discovery doesn't work. > > Quick draw: > MTU: 1500 MTU:1280 MTU:1500 > Comp1 --------- Gate1 -------- Gate2 -----+-- Comp2 > RELENG_5 RELENG_4 RELENG_5 | RELENG_5 > | > +-- Comp3 > RELENG_5 >
Can you look at the routing table for each of Comp1 and Comp2 and also use the -W flag to show the path MTU? If there is something wonky in the routing table then TCP will not hear about the MTU change. Thanks, George _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"