RA for a different router

[Ole Troan]

>>> German DTAG DSL platform. IPv6 via PPPoE. Customer:
>>> 
>>> lan----cust-router------[dsl]----our-l2tp-endpoint
>>>       speaking pppoe
>>>      lan        wan
>>> 
>>> Our l2tp endpoint: cisco 7206, ios 12.4(25b).
>>> 
>>> So, I can suggest a prefix to the cust-router for his LAN interface.
>>> But assigning anything other than a link-local prefix to the wan
>>> side using radius seems to be impossible ?
>> 
>> What about a local v6 pool?  I just checked it with 12.4(24)T2 on a 7206.
> 
> If I use the local v6 pool, how can I statically assign the wan IP ?
> 
> I want to know which customer gets which wan IPv6 8-)

use DHCP for address assignment.
or reserve one subnet of the delegated prefix for an internal management interface.

I think your case is covered in:
http://tools.ietf.org/html/draft-ietf-v6ops-ipv6-cpe-router-03

/ot