On Sat, 31 Jan 2004, marcelo bagnulo wrote: > I think that Christian's proposal doesn't change the packet format, since > the router just has to be smart enough to pick the right source address. > > So all that it is needed is to state that the router has to pick one of its > own addresses that its ingress filters would allow to flow towards the > selected destination.
These kind of statements do not belong in the ICMPv6 spec. > I fail to see why do you think this is not feasible Simply because that's not how routers select addresses for ICMP errors they send. They take an address from the interface which is used for the outgoing packet. And that in itself doesn't really help anything. Now -- at least one vendor allows you to choose the "preferred" [nothing to do with the ND spec term] address on each interface, if there are multiple ones. Setting the ingress-wise correct address preferred on the interface towards the site's infrastructure will give the "ingress-wise" correct source address to the ICMP error message. 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. -- Pekka Savola "You each name yourselves king, yet the Netcore Oy kingdom bleeds." Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings -------------------------------------------------------------------- IETF IPv6 working group mailing list [EMAIL PROTECTED] Administrative Requests: https://www1.ietf.org/mailman/listinfo/ipv6 --------------------------------------------------------------------
