The IESG has received a request from the Softwires WG (softwire) to consider the following document: - 'Lightweight 4over6: An Extension to the DS-Lite Architecture' <draft-ietf-softwire-lw4over6-10.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 2014-10-10. 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 Dual-Stack Lite (RFC 6333) describes an architecture for transporting IPv4 packets over an IPv6 network. This document specifies an extension to DS-Lite called Lightweight 4over6 which moves the Network Address and Port Translation (NAPT) function from the centralized DS-Lite tunnel concentrator to the tunnel client located in the Customer Premises Equipment (CPE). This removes the requirement for a Carrier Grade NAT function in the tunnel concentrator and reduces the amount of centralized state that must be held to a per-subscriber level. In order to delegate the NAPT function and make IPv4 Address sharing possible, port-restricted IPv4 addresses are allocated to the CPEs. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-softwire-lw4over6/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-softwire-lw4over6/ballot/ The following IPR Declarations may be related to this I-D: http://datatracker.ietf.org/ipr/2030/ http://datatracker.ietf.org/ipr/2375/
