3Com 3CRWDR200A-75 - Manual (Page 69)

Firewall 69
5 Click Apply to save the configuration and apply the changes.
The Router will automatically allow FTP and NetMeeting sessions. You do
not need to configure these as Special Applications.
Only one computer on your network can use the special application at
any one time.
DMZ Figure 43 DMZ Screen
DMZ (De-Militarized Zone) Host is a computer without the protection of
the firewall. This feature allows a single computer to be exposed to
unrestricted 2-way communication from outside of your network. This
feature should be used only if the Virtual Server or Special Applications
options do not provide the level of access needed for certain applications.
Single DMZ
To configure one of your computers as a DMZ host, enter the IP address
of the computer in the DMZ Host IP Address, and then click Save/Apply.
Multiple DMZ
You may enable the multiple DMZ function if you have more than one
registered public IP assigned to your server. Please enter the Public IP