On Thu, 2013-06-27 at 17:13 -0700, Mark ZZZ Smith wrote: > Perhaps a DHCPv6 server could have a "promiscuous mode" where it > accepts and permits the addresses it doesn't know about in REBIND > messages, with an upper total limit to prevent DoS.
It needs to know about them at least in so far as the server is responsible for the range, and knows that the addresses concerned are appropriate for the client's link. > If a host resorts to a DHCPv6 REBIND, and the server doesn't know > about the addresses, the host should continue to use the addresses > while they continue to have a valid lifetime. *Stopping* using inappropriate addresses is thoroughly dealt with, both in RENEW and REBIND, and in the eventual expiry of addresses if neither of those mechanisms is working. The issue that REBIND is supposed to solve, though as it turns out, only with the addition of a moving part that no-one has actually built yet, is the problem of allowing a client to *continue* using an address, even if the server that originally allocated that address is not answering the phone. Regards, K. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Karl Auer ([email protected]) http://www.biplane.com.au/kauer http://twitter.com/kauer389 GPG fingerprint: B862 FB15 FE96 4961 BC62 1A40 6239 1208 9865 5F9A Old fingerprint: AE1D 4868 6420 AD9A A698 5251 1699 7B78 4EEE 6017 -------------------------------------------------------------------- IETF IPv6 working group mailing list [email protected] Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
