[Samba] Samba as BDC in NT domain

[Pasi Holmström]

I have this problem: there is a subnet 192.168.6.0/24 and the gateway is
192.168.6.1 which has also another nic 172.21.13.123 which belongs to
subnet 172.21.13.0  where the PDC of NT-domain is. GW does NAT and it
causes that computers/users in subnet 192.168.6.0 cant logon to NT-domain.
Is it possible to put Samba in GW machine so that it can be a backup domain
controller in NT-domain and it uses username:passwd combinations from PDC
and login becames possible?
If so, how can it be done?

pasi h