Well... finally I took and old SCO Server and it works fine to keep working my ERP, but now I have a "LITTLE" trouble... with the other server we've made a connection trought TinyTerm with a DYNDNS Domain, in my firewall I noticed that there's a RULE establishing that the IP 192.168.0.1 (Server IP in my local network) redirect to Port 23 (default of Telnet I think) I think that it's a kind of mapping (tell me if I wrong)... but the actual server don't make this connection, TinyTerm send me an Out of time Error, as all of you can see I'm confused

If I try to connect in the LAN there's no problem.. I can connect to the server but the trouble came when I try to connect "WAN" trought the ADSL to (myserver.dyndns.org)

What it could be happening? The port in the firewall it's wrong? or simply I have to configure in the server this port or another? How can I check what port it's the Telnet port making the connection in SCO?

My firewall it's mOnOwall, and runs Ok, the server runs SCO Openserver R. 5
Thanks to all!!!!