"Finding" a samba server

[Steven]

Hi

I am at university and I have a FreeBSD machine on the accomodation network.
It acts as a NATD router to a couple of other machines i have in my room. It
is running samba 2.0.7 and can communicate with the windows machines on my
LAN via network neighbourhood.

For the machines in public access labs on campus there is a what I have been
told is a samba server which serves each user with a place to store files
(which is maped at login).

I wish to use smbmount on my freebsd machine to mount this directory,
however there is a firewall between the accomodation network and the rest of
the campus which blocks TCP 139.

I have read in a number of places that I can use SSH to forward the local
port on my machine of 139 to a unix machine on the campus network, which in
turn will contact the samba server for the campus network.

My problem is that I don't know the address of this samba server. Any ideas
how to find it? (other than contacting the sysops which would looks well
dodgy :-)

Thanks

Steven