First, thanks! By "what protocols should support PD", I mean, PD sounds like a mechanism: to delegate a prefix. Like RFC 3769, I can't make sure how it is achieved.
As you said, RFC 3633 is a protocol, like an extension of DHCPv6 that can do PD. Thanks again for your reply and the answer of DHCPv6 is exactly what I want to confirm :-) I'm just curious that except DHCPv6, if there is existing any other protocol for PD implementation. 2012/1/3 Ole Troan <[email protected]> > > I know Prefix Delegation. I want to know if there is any RFC / > specification said that what protocols should support PD. > > RFC3633 / RFC6204. > RFC3633 _is_ a protocol. I don't understand what you mean by "what > protocols should support PD". > > > Let's say we have a router supporting 1 WAN and 1 LAN. Suppose the > WAN acquires an prefix (with 64 length) and forms > > its WAN IP. LAN-side users still can't access IPv6 Internet, right ? > > PD delegates a prefix to the LAN-side links, not the WAN side. for the WAN > side normal address assignment is used (SLAAC, DHCP). > > > As I know, the router must request for another prefix (e.g. > 2001:1234:5678::/48) and assign a suitable prefix (e.g. > 2001:1234:5678:ABCD::/64) > > to its LAN, by using Radvd to advertise this prefix. Then, the LAN-side > users can access IPv6 Internet. > > > > > > If above assumption is wrong, please correct me. Otherwise, I want > to make sure, what available methods > > can the router use to request the prefix, 2001:1234:5678::/48 ? DHCPv6 > is the only solution ? Any other ? > > yes, your assumption is wrong. corrected. > > DHCPv6 (RFC3633) is the only IETF specified protocol mechanism for prefix > delegation. > you can possibly do it with TR-69, DOCSIS or manual configuration. > > cheers, > Ole -- Sincerely, minhong
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