I agree with Christian and Pekka here. So I think, we mostly agree upon the text that I had sent out and I don't have to make any changes to that.
> -----Original Message----- > From: ext Christian Huitema [mailto:[EMAIL PROTECTED] > Sent: Saturday, January 31, 2004 1:04 PM > To: Pekka Savola; marcelo bagnulo > Cc: Gupta Mukesh (Nokia-NET/MtView); [EMAIL PROTECTED] > Subject: RE: ICMPv6: New destination unreachable codes > > > > But this is just an operational procedure, which needs to > be stated in > > the multihoming solution documents, but something that IMHO must not > > be added to the ICMPv6 spec, as it's really out of scope from ICMP > > perspective. > > I agree with Pekka. The purpose of the ICMPv6 document is to > reserve the > code and define the format. As Marcelo said, the MH code can work with > this code and format. Let's just go with it. > > I understand Marcelo's concern. He (and I) would like to make life as > good as possible for hosts in multi-homed sites. This will require > operational rules for hosts and for routers. As I mentioned in a > previous message, the code definition is a nice first step. > It tells the > host that it should try another source address. It is only a > first step, > because it does not tell which one. The host will have to use some > heuristic. In some cases, e.g. when there are just two addresses, the > heuristic is trivial. In more complex cases, having more information > might help. But it may be a bit early to determine how this > information > should be passed. We could pass it in ICMP messages, but we could just > as well use a yet-to-be-defined information protocol associating exit > routers with allowed prefixes, or even let hosts use some cached > knowledge from previous connections. Given the wide choices, I would > rather not try to mess around with the ICMPv6 specification. > > -- Christian Huitema > -------------------------------------------------------------------- IETF IPv6 working group mailing list [EMAIL PROTECTED] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
