In message <ca5dea74.158185%[email protected]>, "Brzozowski, Jo hn" writes: > This is something that should be today as part of broadband IPv6 > deployments to prevent conflict at the service provider edge. I cannot > think of a good reason why I would want to accept IPv6 router > advertisements, at this time from residential gateways.
If they advertise the /64's of the /56 they are using you can filter the unrequested traffic and also prevent looping packets when they send the rest of the /56 back to you. If we don't do something like this the border CPE router has to have a null route covering the /56 (or whatever upstream has delegated to it) which would be a good thing to do regardless. Seeing the /64's also gives you a insight into whether you can allocate on the /60 boundary or not. Similarly if you need to start planning for /52's rather than /56's. Mark > John > > On 8/2/11 1:47 AM, "Michael Newbery" <[email protected]> wrote: > > >It's outside the CPE spec, but I can see that the document could state, > >as an assumption, that the ISP will filter routing advertisements from > >the CPE and will only pass those that it has determined (via some > >external mechanism, undefined in this document) belong to the CPE. > > _______________________________________________ > homenet mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/homenet -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: [email protected] _______________________________________________ homenet mailing list [email protected] https://www.ietf.org/mailman/listinfo/homenet
