> I wish the codified behavior was simply to truncate IP packets to the size available If a router could replace the packet with a "truncation sentinel" that's

> I wish the codified behavior was simply to truncate IP packets to the size available If a router could replace the packet with a "truncation sentinel" that's compatible with most firewalls, detectable by new implementations, and doesn't cause data corruption for old implementations, then perhaps truncation could be incrementally deployed? Like a "packet too big" error, but in the forward direction. However, it might be impossible to construct a packet satisfying all of those conditions.