[Samba] Domain trust relationship Q

[Tim Kay]

Hello All,
    Is it possible for a domain server to be trusting of a PDC on 
another subnet? I have 2 domains, foo and bar. I have set up a trust 
account for bar on foo and
net rpc trustdom list produces:

Trusted domains list:
none
Trusting domains list:
FOO                 S-1-5-21-194374591-1744372652-1779375073

which seems OK.

I then issue:
net rpc trustdom establish BAR
on FOOs Samba server which, according to strace, attempts to find the 
BAR PDC through broadcasting on it's subnet, failing and telling me :
[2004/11/25 14:00:02, 0] utils/net_rpc.c:rpc_trustdom_establish(3065)
  Couldn't find domain controller for domain BAR

How do I tell the FOO domain PDC the IP address for the PDC for BAR?

Hope that makes sense.

Tim