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Re: draft-ietf-v6ops-nat64-pb-statement-req-0: behave requirements



On Fri, 25 Jul 2008, marcelo bagnulo braun wrote:
R7: Behave requirements
The translation mechanism MUST be compliant with the requirements for IPv4 NATs defined in [I-D.ietf-behave-tcp] and in [RFC4787] when applicable. These requirements should be interpreted with the IPv6 side on the IPv6-IPv4 translator being the IPv4 private side of the conventional NAT.

First, this heavily assumes v6 initiated communications. If we have nat46, we probably don?t need this

Question: should we include the behave requirements for ICMP, DCCP, SCTP?

I believe making unmodified "ping", "traceroute" and PMTUD work across the translator is a MUST have. The loss of operational diagnostic capabilities is too big otherwise.

--
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings