[Samba] NetBIOS across subnets

Misty Stanley-Jones misty at borkholder.com
Tue Jan 18 15:33:15 GMT 2005

Hi all,

I would like two Samba servers to be able to talk to each other via NetBIOS.  
The problem is that they are on two different subnets.  I have enabled 
broadcast ping on the routers, and the servers can each ping the other subnet 
with no trouble.  The two relevant IPs are and  
There is a T1 between two Cisco routers, and IP routing is all set up. 

Currently 192.168.1.x is the CORP domain. Samba PDC is acting as the WINS 

192.168.2.x is the FURN server, and its Samba PDC is acting as its WINS 

My Windows systems in CORP can browse to the FURN domain and see systems in 

My Windows systems in FURN can browse to the CORP domain but can't see any 
systems in it.

Neither of my PDCs can see the other, so they cannot establish a trust.

Relevant settings for CORP PDC are:
wins support = yes
os level = 100
preferred master = yes
domain master = yes
remote announce =
remote browse sync =
name resolve order = bcast wins lmhosts host  (there is no lmhosts or host)
allow trusted domains = yes
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192

Relevant settings for FURN PDC are:
        os level = 99
        dns proxy = Yes
        wins support = Yes
        wins proxy = Yes
        os level = 100
        preferred master = yes
        domain master = yes
        local master = yes
        remote announce =
        remote browse sync =
# I put this one in to try to get it to "hear" the other server's broadcasts 
-- did not work 
       interfaces =
        name resolve order = bcast wins lmhosts host
        allow trusted domains = yes

Both servers are 3.0.11pre1.  Both are DHCP servers as well.  They are pushing 
out netbios server settings to the clients as follows:

option netbios-name-servers,;
option netbios-node-type 8;

option netbios-name-servers;
option netbios-node-type 8;

The fact that FURN is not giving out CORP as a netbios server might be 
significant why the users can't see CORP's computers, but it doesn't explain 
why the domains can't see each other.

If anybody has any information on how I can make this work I would love it.  I 
did look in "Samba 3 By Example" but it doesn't really go into the networking 
side of it at all.


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