[Samba] Joining domain across subnet

[Ephi Dror]

Hi All,
 
If I have domain controller on a different subnet than the samba server
and I would like  to join that domain controller  in an environment
without WINS, meaning only DNS available.
 
Unfortunately, it failed.  
 
Is it possible to do it? I am using domain type DOMAIN (not ADS) in
smb.conf and the command I used is: "net  join -Uname%passwd"
 
I looked at the -d 10 log info and it looks like it broadcasts for the
domain name with the <xx> netbios stuff but of course across subnet it
would not work.
 
 
So is it true that in a pure DNS environment without the great help of
WINS server around  in which the domain controller and the samba server
are on a different subnets, I must use domain type ADS?
 
 
Thanks for your tips,
 
Cheers,
Ephi