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DHCPv6 PD & Routing Questions

> Well the requesting router could announce the route.  ISC's client
> has hooks that allow this to be done.  That is, after all, how
> routing is designed to work.  The DHCP server usually is sitting
> in a data center on the other side of the country with zero ability
> to inject approptiate routes.
> The DHCP relay could also have injected routes but that is a second
> class solution.

A CPE announcing the route is fine as long as the ISP controls the CPE.

If the CPE is controled by the customer, then the ISP's problems are
similar. They need to find a way to filter the CPE's announcement so
that it can announce only the prefixes delegated to it.