On Wed, 24 Feb 2010 00:42:28 +0100, Linus Lüssing <linus.luessing@xxxxxx> wrote: > Hi there, > > we're having a buggy, closed source IPv6 router here, which keeps > announcing a wrong MTU via ICMPv6 packet too big messages. Is > there a way to modify the 1500 to a 1480 with a rule in the mangle > table on the host that receives those broken messages? I think > despite this one value, also the checksum would have to be > recalculated. > > Cheers, Linus > > PS: the tcpmss-target extension is not enough, as I'm still having > trouble with UDP packets. If someone more experienced does not have a cleaner solution... I've found setting fixed MTU on the NIC of each box plugged into such hardware to work nicely for all protocols. Generating the ICMP message at a box that works. AYJ Amos -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
