User Manual
Table Of Contents
- Contents
- 1. Introduction and Hardware Overview
- 2. Get Started
- 3. Manage the Mobile Broadband Connection
- 4. 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
- 5. 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 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
- 6. 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 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?
- 7. Alerts and Troubleshooting
- A. Default Settings and Specifications
- B. Wall-Mount the Modem
7. Click the Submit button.
The modem resets to activate the new settings. Any devices that are connected to
the modem are disconnected when the modem resets.
Manage Port Filtering for Outgoing Traffic
Note: You can enable and manage port filtering only when the modem functions in
Router mode.
As an added security measure, you can specify which services and applications (for
example, HTTP, FTP, an email server) can access or are blocked from the Internet.
Before you add a service or application, first determine which port number and protocol
the service or application uses. You can usually find this information by contacting the
publisher of the service or application or searching the Internet.
The following sections provide information about managing port filtering for outgoing
traffic:
•
Block Specific Services and Applications From Accessing the Internet and Allow All
Other Services and Applications on page 33
•
Allow Specific Services and Applications to Access the Internet and Block All Other
Services and Applications on page 35
•
View Services and Applications on the Blacklist and Remove a Service or Application
From the List on page 36
•
View Services and Applications on the Whitelist and Remove a Service or Application
From the List on page 38
•
Disable Port Forwarding on page 32
Block Specific Services and Applications From Accessing
the Internet and Allow All Other Services and Applications
You can set up a blacklist of services and applications that are blocked from accessing
the Internet. All other services and applications are allowed to access the Internet.
Note: The blacklist and whitelist are mutually exclusive. You can enable either one or
the other.
IMPORTANT: For you to be able to set up a blacklist, the modem must be connected
to the Internet. If the modem is not connected to the Internet, the configuration fails.
User Manual33Secure Your Network
NETGEAR 4G LTE Modem LM1200










