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Wireless Router Information.
« Thread started on: Mar 7th, 2011, 10:06am »
Wireless Troubleshooting Bulletin
Enabling DMZ Feature on MiFi 2200
Purpose: This Troubleshooting Bulleting provides instructions on how to enable the DMZ feature on the MiFi.
Products: MiFi 2200, FW 159.027 and later.
The Demilitarized Zone (DMZ) feature allows one IP Address (computer) on the LAN to be exposed to the Internet. Such a local computer is called DMZ host. Any user on the internet can access in/out data from the DMZ host.
This feature is useful for special applications that may be using specific TCP/IP ports that are otherwise blocked by the NAT firewall on the MiFi. This includes applications such as internet gaming, video conferencing etc.
1. It should be noted that while using the DMZ feature the local computer is exposed to the internet. It is, therefore, recommended that the DMZ feature be only used for special purpose services and uses, and that once that purpose is complete the DMZ should be disabled.
2. It is necessary to set the local computer with a static IP address in order to use the DMZ feature on the MiFi. Please see instructions below.
3. When using the DMZ feature, the local host/client that is in the DMZ will receive all incoming packets.
1. Connect to the MiFi wirelessly (Wi-Fi mode) using the local host that you want to put in the DMZ.
2. Set that local host with a static IP address in the range of 192-168-1.2 ~ 192.168.1.255. The instructions for a local host computer with Windows XP are given below:
a. Go to ‘Start > Connect to > Wireless Network Connection’. This will open the currently active Wireless Network Connection Status window.
b. Click on ‘Properties’. This will open the ‘Wireless Network Connection Properties’ window.
c. In the box titled ‘This connection uses the following items: ’, scroll down and select ‘Internet Protocol (TCP/IP)’, and click on ‘Properties’ button. This will open the ‘Internet Protocol (TCP/IP) Properties’ window.
d. Make selections as below:
i. Select “Use the following IP address”
ii. IP address: Enter something in the range of 192.168.1.2 ~ 192.168.1.255. This is the static IP address of the local host computer/client.
iii. Subnet Mask: Enter 255.255.255.0
iv. Default Gateway: Enter 192.168.1.1
v. Select ‘Use the following DNS server addresses’
vi. Preferred DNS server: Enter 192.168.1.1
vii. Alternate DSN server: Leave blank.
e. Click ‘OK’ twice to exit out of the ‘Internet Protocol (TCP/IP) Properties’ and the ‘Wireless Network Connection Properties’ windows.
f. Click ‘Close’ to exit out of the ‘Wireless Network Status’ window.
g. Now your local host computer has been set with a static IP address. Please make a note of the static IP address that you selected (Step d-ii from above)
3. Open up a web browser and in the address bar type the IP address http://192.168.1.1 to go to the MiFi Administration page.
4. Login using you administration page password.
5. Go to Advanced > Config File tab.
6. Download the Configuration file to your PC after entering your MiFi administration password and clicking the ‘Download File’ button.
7. In your download folder look for the file named ‘config.xml.sav’. Save this file in a known location for future use. Open a copy of the file using ‘Notepad’ program.
8. Please be aware that this file contains the configuration settings of the MiFi. Observe caution and only change the settings as specified below, since these settings will directly impact the MiFi functioning.
9. In order to enable the DMZ feature look for the DMZ field in the config file and make the changes as specified below:
[This IP address should be same as the static IP address that was assigned to the local host computer/client 2-d-ii above.]
10. Save the file. Ensure that the name is same as the downloaded file i.e. ‘config.xml.sav’.
11. Go to the MiFi Administration page and Upload the newly saved config file. Click on the ‘Browse’ button in the ‘Config Upload File’ section, select the newly saved config.xml.sav file, enter the MiFi administration password, and click ‘Upload file’ button.
12. This will restart the MiFi and apply the new settings. The host computer might get disconnected from the MiFi and might need to be manually re-connected using the local host computer/client’s WiFi manager.
13. Once the local host computer/client is reconnected to the MiFi it will be in the DMZ and exposed to the internet.