I am certainly not suggesting using more than one Link-Local address for a PPP client. All I am saying is if PPP uses IPV6CP and interface-id for Link-Local address, it is a little odd to use DAD for rest of the addresses assigned to the PPP client - the privacy and other addresses that Dave alluded to. I don't want to change PPP in such a radical way - given the nature of the p2p link it's not so odd if Link-local address is negotiated using IPV6CP and other addresses of the PPP client use DAD. We should just make such facts clear in 2472bis.
Thanks. Hemant -----Original Message----- From: James Carlson [mailto:[EMAIL PROTECTED] Sent: Thursday, July 19, 2007 5:20 PM To: Hemant Singh (shemant) Cc: Dave Thaler; JINMEI Tatuya / ????; ipv6@ietf.org; [EMAIL PROTECTED] Subject: RE: Neighbor Discovery and PPP links Hemant Singh (shemant) writes: > All I am saying is, if IPV6CP is used to negotiate one interface-id, > when multiple addresses, that Dave pointed out, are needed for the > same client, why not use IPV6CP to negotiate interface-id's for even > these addresses? We'd have to discuss that on the PPP list, but my take on it is that it'd likely be incompatible with existing implementations. I don't know that anyone expects more than one IPV6CP Interface-Identifier option -- I know for certain that the open source ppp-2.4 implementation wouldn't handle it right. I think it'd be pretty strange operationally as well. You'd end up with multiple link-local addresses. I don't think I agree with pushing this issue down into PPP. We don't do that for Ethernet, so why would PPP be special? -- James Carlson, Solaris Networking <[EMAIL PROTECTED]> Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 -------------------------------------------------------------------- IETF IPv6 working group mailing list ipv6@ietf.org Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
