Tip
Subject Content

32
Make a registry tweak to IP forward

When you have two network interfaces on one computer, the requests from one interface don't pass

over to the other. For instance, if you have a network card and a modem that's connected to the

Internet, the requests from the network card will not be forwarded over the modem.



If you want to achieve this, you would normally have to install Routing and Remote Access Server

(RRAS). However, RRAS is quite difficult to configure. An easier method is to edit the registry.

(Reminder: Editing the registry can be risky, so be sure you have a verified backup before making

any changes.)



Log on as administrator and open Regedt32.exe.

Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

If the IPEnableRouter doesn't exist, create it using REG_DWORD type and set it to 1.

Close the Regedit and reboot the machine.



This will enable TCP/IP forwarding for all network connections on this computer. If you later want

to disable it, just set that registry key to 0.

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