Windows XP BROWSER lookup and election requests

[Tom Alsberg]

Slightly offtopic question here:

We have many Windows XP hosts on subnets other than that which Samba
is running on.  They all have (get from DHCP) the Samba server as
their WINS server and NetBIOS node type P-node (peer-to-peer, no
broadcast).

Yet still, BROWSER election and lookup requests for other workgroups
are sent by them to the broadcast address of their local subnet.
Sometimes some program running tries to repeatedly browse all
workgroups, which causes the machine to send excessive broadcasts
(nothing big, about 1 per second, but we try to minimise broadcast
noise on the network).

Is it possible to somehow cause the Windows machines to send BROWSER
requests for other workgroups also only to their defined WINS server?
Sort of making Samba the sole NetBIOS name server and browse master
for everything?

  Thanks,
  -- Tom

P.S. Is it also possible (without changing the code) to convince nmbd
somehow to discard all domain/workgroup names other than its own when
advertised to it, so that 'smbclient -L <server>' (and thus also all
requests from workstations to the server) will only show/return the
configured domain/workgroup names?

-- 
  Tom Alsberg - hacker (being the best description fitting this space)
  Web page:	http://www.cs.huji.ac.il/~alsbergt/
DISCLAIMER:  The above message does not even necessarily represent what
my fingers have typed on the keyboard, save anything further.