The IESG has received a request from the Internet Area Working Group WG (intarea) to consider the following document: - 'Updated Specification of the IPv4 ID Field' <draft-ietf-intarea-ipv4-id-update-05.txt> as Proposed Standard The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2012-06-14. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract The IPv4 Identification (ID) field enables fragmentation and reassembly, and as currently specified is required to be unique within the maximum lifetime for all datagrams with a given source/destination/protocol tuple. If enforced, this uniqueness requirement would limit all connections to 6.4 Mbps. Because individual connections commonly exceed this speed, it is clear that existing systems violate the current specification. This document updates the specification of the IPv4 ID field in RFC791, RFC1122, and RFC2003 to more closely reflect current practice and to more closely match IPv6 so that the field's value is defined only when a datagram is actually fragmented. It also discusses the impact of these changes on how datagrams are used. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-intarea-ipv4-id-update/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-intarea-ipv4-id-update/ballot/ No IPR declarations have been submitted directly on this I-D.