Hi all, Between this 2 ip address we have a firewall and we have open a port. When both server is window 2003 is working fine. But when one of them changes to window 2000, i cannot telnet to access the other window 2003 server. any body have any idea thanks

Hi cheng99, Thanks for posting here. So have you tried connecting both Windows 2000/2003 hosts without this firewall device and what’s the result ? You should enable telnet service on both sides and configure windows built in firewall for allowing incoming telnet connection first : How To Enable Telnet Server in Windows 2000 Server http://support.microsoft.com/kb/299942 For more information please refer to the article below: Service overview and network port requirements for the Windows Server system http://support.microsoft.com/kb/832017 Thanks. Tiger Li Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.