Subject: [Int-area] update to draft-ietf-intarea-ipv4-id-update

From: Joe Touch <[email-masked]>
Date: Wed, 14 Sep 2011 17:17:02 -0700

Hi, all,

I just posted an update to the IPv4 ID doc.

Here is a summary of the changes:

- fixed several references
	there had been too many refs to RFC 4963 that were incorrect

- added "address sharing mechanisms" to NATs, and included rewriting 
devices in general when discussing NAT-style issues, including refs to 
IVI and 4rd
	as suggested by Dan Wing

- removed the prohibition on overlapping fragments
	as suggested by Mike Heard

- removed the explicit permission to change the ID of atomic packets 
in-transit
	as suggested by Erik Nordmark

- includes a discussion of Simplified Multicast Forwarding, which uses 
the IPv4 ID for duplicate packet detection
	SMF is defined for both IPv4 and IPv6; since IPv6 packets
	cannot be assumed to include an ID, I have suggested that
	SMF IPv4 processing be updated such that:
		- IPv4 non-atomic packets can use ID DPD
		- IPv4 atomic packets use hash-based DPD,
		just as IPv6 packets without the ID option would

FWIW, the ack's in the next version will include the names of these 
contributors as well ;-)

This includes all known pending concerns.

Joe