Re: WPD-6, WAA-8, and WAA-9 of draft-ietf-v6ops-ipv6-cpe-router-04

[Ole Troan <ot@cisco.com>]

> The current text in draft-ietf-v6ops-ipv6-cpe-router-04 mandates the
> weak host model: if the CPE gets a delegated prefix with an unnumbered WAN
> link then RFC-3633 prevents it from assigning an address out of that prefix to
> it's WAN interface.
> 
> I prefer to avoid unnumbered links. I think it is much less confusing if 
> source addresses of error ICMPs are always addresses from the interface that
> generated the error.

these two paragraphs are mutually exclusive. you cannot require that an ICMP error is sourced from the interface that generated the error and at the same time require that a router use the strong host model.

/ot