Acer WLAN 11g Broadband Router User Manual page 18

4.3.2.3. Next to External - Internal, you can list up to 6 static, external IP
addresses provided by your ISP.
4.3.2.4. Next to External – DMZ, define for your DMZ network up to 6
static, external global IP addresses provided by your ISP.
4.3.2.5. When you have completed editing all the settings, click Apply,
or click Cancel to undo your changes.
4.3.3. To Remove Global Addresses:
4.3.3.1. Click Global Address on the navigation bar.
4.3.3.2. For any entry you want to delete, enter 0.0.0.0, and click Apply.
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