The IESG has received a request from the Softwires WG (softwire) to consider the following document: - 'IPv4 Multicast over an IPv6 Multicast in Softwire Mesh Network' <draft-ietf-softwire-mesh-multicast-22.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 2018-09-06. 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 During the transition to IPv6, there will be scenarios where a backbone network internally running one IP address family (referred to as the internal IP or I-IP family), connects client networks running another IP address family (referred to as the external IP or E-IP family). In such cases, the I-IP backbone needs to offer both unicast and multicast transit services to the client E-IP networks. This document describes a mechanism for supporting multicast across backbone networks where the I-IP and E-IP protocol families differ. The document focuses on IPv4-over-IPv6 scenario, due to lack of real- world use cases for IPv6-over-IPv4 scenario. The file can be obtained via https://datatracker.ietf.org/doc/draft-ietf-softwire-mesh-multicast/ IESG discussion can be tracked via https://datatracker.ietf.org/doc/draft-ietf-softwire-mesh-multicast/ballot/ No IPR declarations have been submitted directly on this I-D.
