Disable DMZ Configuration

A router uses a firewall to refuse unauthorized traffic entering the local area network, but administrators can set up a demilitarized zone, or DMZ, and instruct the networking device to send the traffic to a single computer on the network, effectively putting it “outside” of the firewall. This can be a workaround for some problems, but also means that the computer in the DMZ is more susceptible to attack. To put the computer back behind your firewall and keep your machines secure, disable the DMZ setting on the router.

 Linksys

  • Navigate to “http:/192.168.1.1" (without the quotations) from a browser and log in using “admin” as the password. Do not enter a username.
  • Select “Applications & Gaming” from the menu and then choose “DMZ” from the submenu.
  • Select “Disabled” and then click “Save Settings” to disable DMZ.

Netgear

  • Navigate to “http:/www.routerlogin.com" or “http:/www.routerlogin.net & quot; (both without the quotations). The address varies depending on the model of the device.
  • Log in using “admin” as the username and “password” or “1234” as the password. Again, the default password varies depending on the model of the device.
  • Select “WAN Setup” from under Advanced. Uncheck “Default DMZ Server” and then click “Apply.”

Belkin

  • Navigate to “http:// 192.168.2.1" (without the quotations). Leave the password field blank to log in.
  • Select “DMZ” from under Security or Firewall and then uncheck “Enable.”
  • Click “Enter” or “Apply Changes” to disable DMZ on the Belkin device.

D-Link

  • Navigate to “http:// 192.168.0.1" (without the quotations) and log in using “Admin” as the username. Do not enter a password.
  • Select “Advanced” from the main menu and then select “Firewall Settings” from the left pane.
  • Uncheck “Enable DMZ” and then click “Save Settings.”
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