PING packets illegal?

[Perry E. Metzger]

Adam Shostack writes:
> | If you want to really abuse the protocols, 53 bytes probably fits into the
> | 64 you can send in a ping, so you could implement ATM-over-ICMP :-)
> 
> Err, you can put up to 1500 bytes into an ICMP echo request, if its
> properly implemented.

IP datagrams will store up to 64k (including headers). 1500 bytes is
just a common MTU, but with fragmentation that needn't be a limit.

.pm