Re: Comments on draft-wbeebee-ipv6-cpe-router-01.txt

["Ole Troan" <otroan@employees.org>]

Barbara,

> I disagree that if the loopback interface is not configured "you will
> have to use the Numbered model of our document and assign a global IPV6
> to the WAN interface". Just to be sure, I think you're saying that the
> CPE router will need to get a global IPv6 address via SLAAC or stateful
> DHCPv6, from the access network. I do not see any reason why the CPE
> router cannot use one of the addresses from its assigned prefix. Since
> we are definitely considering using the "unnumbered model", and we have
> no loopback interface in our devices (and have no intention of having
> them), I think I'm going to have to try to get a second opinion on this.
> Does anyone else have an opinion on whether or not the "unnumbered
> model" will only work in the presence of a loopback interface?
>
> By the way, I've never seen such a loopback interface in any mass market
> retail CPE routers. To me, the capabilities found in such mass market
> routers should be the benchmark for "very normal". I'm also not familiar
> with it in DSL routers. DSL routers are also "very normal", worldwide.
> I've been trying to search the Internet for products that include this
> interface, and all I can find are Cisco products with IOS. I'm curious
> as to whether any other vendors implement this interface, and, if so, on
> what sorts of mass market products.

the loopback interface is a red herring. the unnumbered model will
work just fine without it.

/ot