You must assign a static IP address on the device you want to put in the DMZ. The instructions below assume the device is a Windows 2000 or XP computer. For another device (such as a DVR or Slingbox) you will need to consult the manual that came with that device.
First, assign a static IP address on the Windows 2000/XP computer:
- From the Start menu, select Control Panel (or Settings and then Control Panel).
- Select Network Connections.
- Right-click on Local Area Connection and select Properties. The Local Area Connection Properties window opens.
- In the section with the heading, "This connection uses the following items:" scroll down until you see Internet Protocol (TCP/IP).
- Highlight Internet Protocol (TCP/IP) and select Properties. The Internet Protocol (TCP/IP) Properties window opens.
- Click on Use the Following IP Addresses
- Assuming you are using the default LAN IP settings on the Zoom ADSL X5 modem, enter the following information:
- IP address: This should be in the format 10.0.0.x, where x is any number from 100 to 250. (Note: If you have multiple computers or devices, each one must have a unique IP address number.)
- Subnet mask: 255.255.255.0
- Default gateway: 10.0.0.2
- Preferred DNS server: 10.0.0.2 (Note: If your ISP gave you a Preferred DNS server IP address, enter that information here. Otherwise, use 10.0.0.2.)
- Alternate DNS: Leave blank (Note: If your ISP gave you an Alternate DNS server IP address, enter that information here. Otherwise, leave this field blank.)
- Click OK, to close the Internet Protocol (TCP/IP) Properties window
- Click OK, to close the Local Area Connections Properties. Your computer may ask you to reboot at this time.
Next, you need to access the Zoom Configuration Manager and create a NAT Rule:
- On a computer that is connected to the Zoom ADSL modem router, open a web browser and type http://10.0.0.2 and then press Enter (or Return)
- Enter the modem's admin Use Name and Password:
- User Name: admin
- Password: zoomadsl (where "l" is a lowercase letter L)
- When the Basic Setup page appears, click on the Advance Setup icon at the top of the page.
- Click the NAT button.
- From the NAT Options pull-down menu, select NAT Rule Entry.
- Click the Add button. A new window opens.
- Enter the following information:
- Rule Flavor: Select RDR
- Rule ID: enter 5 or any number that is not already listed. (Note: Depending on your modem model, you may have up to 4 default rules, so the next one is 5.)
- If Name: Select All
- Protocol: Select ANY
- Local Address From: Enter 10.0.0.x (where x is between 100 and 250), which is the IP address of the device you want to put in a DMZ.
- Local Address To: Enter the same 10.0.0.x IP address as above
- Global Address From: 0.0.0.0
- Global Address To: 0.0.0.0
- Destination Port From: 0 (zero)
- Destination Port To: 65535
- Local Port: Enter 0 (zero)
- Click on the Save Changes button
- Click on the Write Settings to Flash button
- The computer is now in a DMZ and outside of the modem’s firewall. Devices which can be configured this way to enhance their use are gaming devices like Xbox, PS2, and PS3 as well as Slingbox.
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