On 20 aug 2008, at 22:12, Francis Dupont wrote:
Note, as the issue exists only for UDP
Note that this fragment header has a broader purpose than current fragmentation, even if the above were true for existing fragmentation (it isn't, tunneling is an important issue and fragments sometimes happen where you wouldn't expect them, even with TCP).
For instance, the new fragment header will allow for a non-ICMP based path MTU discovery and easier filtering and NATing because port numbers are always in the same place regardless of extra headers, and regardless of whether the transport is TCP, UDP, SCTP or DCCP.