re-delegation question

[Haiyan Li]

Domain d.example.net is delegated to nameserver1 from example.net
to us, but now I need to host d.example.net zone on another name
server - nameserver2 for ipv6, which is not available on nameserver1.

My question is:
If re-delegation is not legal, is there a way to make this work
other than the following two:

1, slave nameserver1 to nameserver2, which is is not possible in this
case, since nameserver1 don't have ipv6 which is needed for this zone.

2, having the parent (example.net) dns changed to delegate to nameserver2
directly, but I'd prefer to not to do this if possible, I can
make changes to my local dns quickly without contacting the parent.

Any help would be greatly appreciated, thanks.


Haiyan