On Sat, May 28, 2011 at 10:07:02AM -0700, George Bonser wrote: > Is this an A10 issue or is this a problem with ICMP PMTU discovery in > general? The former. The AX doesn't react to the ICMP packet too big and continues sending packets unfragmented. Best regards, Daniel -- CLUE-RIPE -- Jabber: dr at cluenet.de -- dr at IRCnet -- PGP: 0xA85C8AA0