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Open a browser application and enter "192.168.1.254" in the address field to access the 2210 Interface. Note: If you are using another router in conjunction with the 2210 and you can not get to the interface screen click here.
Click on Local Network from the top menu. Click on IP Passthrough/DMZ from the right menu. Select the name (or currently assigned IP) of the individual computer you want to enable IP Passthrough. Click on Enable. This will automatically restart the modem and the interface will return after the changes are saved.
After the modem has restarted the modem will assign the WAN IP to that particular PC's NIC. However, you must restart your PC (or do an IP release/renew) before the PC will actually be assigned the WAN IP. To confirm the correct IP you can open a DOS window, type ipconfig, and hit Enter which will display the IP information. You are finished.