RE: Posted a new copy of CPE Rtr draft

["Hemant Singh (shemant)" <shemant@cisco.com>]

>Hello,
>        I have a question on section 5:
>could you please explain why stateful DHCPv6 is the recommended method
for assigning a global IPv6 address to the  WAN interface? Are you
suggesting >excluding the possibility to use SLAAC to number WAN
interface?

No, we are not at all suggesting that the WAN interface not acquire its
global IPv6 address using SLAAC. Either of SLAAC or stateful DHCPv6 is
fine for the WAN interface to acquire its global address with. We only
mandate stateful DHCPv6 if the CPE Rtr has to acquire an IA_PD option.
Please also note this sentence from section 5.

[Further, in the numbered model, we recommend the CPE Router WAN
interface acquire its global IPv6 address using stateful DHCPv6 for
administrative control of the router.]

A SP may want more administrative control of the CPE Rtr and DHCPv6
provides that.  

Hemant