[Samba] Can't access remote server

[Kent Wang]

RedHat 9, samba-2.2.7a-8.9.0. Fresh install. No iptables or any firewall
settings.

I can access my server fine locally with smbclient, but using smbclient from
a machine located in a network I get this:

[kwang at gorgon kwang]$ smbclient //webdev.ic2.org/home
added interface ip=24.243.211.67 bcast=24.243.223.255 nmask=255.255.240.0
added interface ip=192.168.0.2 bcast=192.168.0.255 nmask=255.255.255.0
error connecting to 128.83.222.87:139 (No route to host)
Error connecting to 128.83.222.87 (No route to host)
Connection to webdev.ic2.org failed

Attempting this through Windows Explorer also fails.

My hosts allow and hosts deny are both blank.

Are there any settings that I need to check to enable the server to respond
to outside connections?

Thanks,
Kent Wang
IC2 Institute