Use and Care Manual
Table Of Contents
- Contents
- 1. Introduction and Hardware Overview
- 2. Get Started
- 3. Manage the Modem LAN Settings
- 4. Manage the Mobile Broadband Connection
- 5. Secure Your Network
- Change the Modem Password
- Manage Port Forwarding for Incoming Traffic
- Manage Port Filtering for Outgoing Traffic
- Block Specific Services and Applications From Accessing the Internet and Allow All Other Services and Applications
- Allow Specific Services and Applications to Access the Internet and Block All Other Services and Applications
- View Services and Applications on the Blacklist and Remove a Service or Application From the List
- View Services and Applications on the Whitelist and Remove a Service or Application From the List
- Disable Port Filtering
- Manage SIM Card Security
- 6. Manage the Modem and Monitor Usage and the Network
- Upgrade the Firmware of the Modem
- Back Up and Restore the Modem Settings
- Return the Modem to Its Factory Default Settings
- View Monthly Data and Session Data Usage
- Set a Plan Limit for the Data Counter
- Change the Billing Cycle Counter or Reset the Data Counter
- View Service Provider, Type of Service, and Signal Strength
- View Account Details and Other Details About Your Modem
- View Information About the Mobile Broadband Connection
- Set Up SMS Alert Messages
- Set the Data Limit for SMS Alert Messages
- View Alerts
- Turn Off the LEDs
- 7. Manage SMS Messages
- 8. Frequently Asked Questions
- What do I do when I can’t connect a device to the modem?
- What do I do when I can’t access the Internet?
- What do I do when the No Signal icon displays?
- Why does the Signal Strength LED show only a few bars?
- Why is the download or upload speed slow?
- Can I connect multiple LAN devices to the modem?
- How do I access the modem’s web pages?
- What do I do if I forget my admin login password?
- How do I disconnect from the mobile broadband network?
- How do I find my computer’s IP address?
- How do I find a device’s MAC address?
- How do I find my mobile phone number?
- Where can I find more information?
- 9. Alerts and Troubleshooting
- A. Default Settings and Specifications
- B. Wall-Mount the Modem

By default, the Enable radio button is selected and the DHCP server issues IP addresses to connected
devices.
7. Click the Submit button.
Your settings are saved.
Enable the DMZ
You can enable the DMZ settings only when the modem functions in Router mode
(see Manage Router Mode and Bridge Mode on page 23).
Note
In a demilitarized zone (DMZ) network configuration, a designated computer runs outside the firewall in the
DMZ. This computer intercepts incoming Internet traffic, providing an extra layer of protection for the rest
of the network, and sending all incoming data to a particular IP address.
To enable the DMZ when the modem functions in Router mode and to designate a computer
to receive incoming traffic:
1. Launch a web browser from a device that is connected to the modem.
The device can be a computer that is directly connected to the modem or a client from a router that is
connected to the modem.
2. In the address field of your browser, enter http://192.168.5.1.
The limited Dashboard page displays.
3. If you did not select the Remember me check box when you logged in previously, enter the modem
password in the Sign In field.
See the modem label for the default password.
4. Click the Sign In button.
The full Dashboard page displays.
5. Select Settings > Advanced > LAN.
The LAN page displays.
The diagnostics feature on the LAN page is intended for NETGEAR technical support
only. By default, the Enable Diagnostics Off radio button is selected.
Note
6. Scroll down to the bottom of the page.
7. In the DMZ section, next to DMZ Enabled, select the On radio button.
The Submit button and the IP Address field display after you select the radio button.
By default, the Off radio button is selected and the DMZ server is disabled.
8. In the DMZ Address field, enter the IP address of the computer to which you want all data sent.
Manage the Modem LAN Settings
27
LTE Modem LB1120 and LB1121