Handing out DNS server from Cisco local pool

[Frank Bulk]

If I want to hand out an IPv6 DNS server via Cisco's local pool for the WAN
interface, how is that done?

With IPv4 it's just a:
interface Virtual-Template1
 ppp ipcp dns <IP 1> <IP 2>

With IPv6 it's supposed to run DHCPv6 over the WAN link, and Cisco's "local
pool" command hands out IPv6 addresses very nicely:
ipv6 local pool ipv6pool-lns <IPv6>::/56 65

but there appears to be no way to specify the DNSv6 address(es).

Frank