4. Turn on the DMZ.
Short for Demilitarized Zone, this feature lets you designate an internal device on your network to appear as if it is outside your router’s firewall. It’s handy if you have a webcam or gaming computer that won’t be blocked by the router firewall. To set up a DMZ, simply assign the computer (or webcam) a fixed internal IP address, and then turn on the DMZ in the router and add the computer’s IP address. DMZ settings can be found on a DLink router by clicking the Advanced tab then the DMZ button. See Figure 4.
Figure 4 Use the DMZ feature to make a device inside your network appear as if it’s outside.