i've successfully used the netbios alias option in smb.conf to pull off something similar. when i took off serverA for maintenance, i transferred the data to serverB and just added serverA as an alias in serverB's config.
you may want to look into that instead of fiddling around with ip addresses. -- To unsubscribe from this list go to the following URL and read the instructions: https://lists.samba.org/mailman/listinfo/samba
