Configuring RAS so that a DUN client, using only TCP/IP, can browse a remote network, requires:
DUN client's workgroup/Domain name to be the same as the remote network (Control Panel / Networks).
Install WINS on the remote network (not necessarily on the RAS server).
Configure TCP/IP on the RAS server to register with WINS (Control Panel / Networks).
Use the default setting on the DUN client (server-assigned name server addresses).
If it doesn't work, configure name server addresses in the phonebook.
When you logon, click the Logon Using Dial-Up Networking check box.