Someone reminded me of something today ;)

[coxa () eris private cableol net (Alan Cox)]

Now that various people have put bits of info in the public domain[1] so nobody
at 3com can claim I'm breaking confidences, I'd like to invite the entire
world to try sending IP data with 0 length options (IP or TCP) to the
management port of all their 3com routers and kit, especially the little
routers, bridges and managed hubs.

Have fun

Alan
[1] Like the ip_send documentation.