Brian E Carpenter wrote: >> With a fully backwards compatible transparent addressing scheme, >> a much larger fraction of the nodes would have switched to actively >> use IPv6 many years ago. > Why? They would have needed updated stacks. The routers would > have need updated stacks. The servers would have needed updated > stacks. The firewalls would have needed updated stacks. The load > balancers would have needed updated stacks. Many MIBs would have > needed to be updated. DHCP servers would have needed to be updated. > ARP would have needed to be updated, and every routing protocol. With Realm Specific IP [RFC3102]: This document examines the general framework of Realm Specific IP (RSIP). RSIP is intended as a alternative to NAT in which the end- to-end integrity of packets is maintained. We focus on implementation issues, deployment scenarios, and interaction with other layer-three protocols. what is necessary are minor modification on IPv4/transport stack of new (but not existing) hosts and minor extension of DHCP. Masataka Ohta _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf