As nobody really objected to this patch, I opted to create facts :-)

This uses 'socket address' as the source address for nmbd. This way we
can again synchronize with the DMB if we have 'bind interfaces only'
to a virtual interface.

I'd love to see this in 2.2.9, but that is up to jerry or jra.

Volker

source/nmbd/nmbd.c

@@ -547,7 +547,9 @@ static BOOL open_sockets(BOOL isdaemon, int port)
 	 */
 
 	if ( isdaemon )
-		ClientNMB = open_socket_in(SOCK_DGRAM, port,0,0,True);
+		ClientNMB = open_socket_in(SOCK_DGRAM, port,
+					   interpret_addr(lp_socket_address()),
+					   0,True);
 	else
 		ClientNMB = 0;