Joe Touch wrote: >> Or, are 6 to 4 translators are required to rate limit and >> drop rate-violating packets to make the "stateless" >> translators full of states. > > I would expect that the translator would be responsible > for this, though Do you mean translators must rate limit, or translators violate RFC2765: >> Identification: >> Copied from the low-order 16-bits in the >> Identification field in the Fragment header. and use some other number as an ID? > there is the problem that multiple translators interfere > with each other. Yes, even rate limiting translators may interfere each other, which means rate limiting must be done at the IPv6 source node. > Regardless, this is outside the scope of the ipv4-id-update doc. In the ID, there are a lot of references to IPv6. For example, the following statement of the ID: Finally, the IPv6 ID field is 32 bits, and required unique per source/destination address pair for IPv6, whereas for IPv4 it is only 16 bits and required unique per source/destination/protocol triple. must be modified as: Finally, the IPv6 ID field is 32 bits, but lower 16 bits are required unique per source/destination address pair for IPv6, whereas for IPv4 it is only 16 bits and required unique per source/destination/protocol triple. Masataka Ohta