DHCPv6 PD & Routing Questions

Sat Nov 21 10:13:54 UTC 2015

On Fri, Nov 20, 2015 at 10:35 PM, Jim Burwell <jimb at jsbc.cc> wrote:
> 2) What are the most common ways of managing the routing of delegated
> prefixes in the ISPs routing domain?  Has a standard method/best
> practice emerged yet?  Routing protocols?  IPv6 RAs?
>
> One obvious answer would be routing protocols.  In my brief googling,
> I've seen a forum post that seems to indicate that Comcast makes use of
> RIPng on their CPE to propagate routing information for prefixes
> delegated to it.  Can someone confirm this?  This would seem as good a
> method as any to do this, albeit with obvious security concerns.

We've build a small tool which watches the dhcpd6 lease file for
changes and injects the PD routes using exabgp (iBGP session with
corresponding IA_NA address as next-hop for the IA_PD prefix).

Best Regards,
Frederik Kriewitz