NETGEAR LB2120 Series User Manual

Manage Port Filtering for Outgoing Traffic
You can enable and manage port filtering only when the modem functions in Router
mode (see Manage Router Mode and Bridge Mode on page 26).
Note
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 45
• Allow Specific Services and Applications to Access the Internet and Block All Other Services and
Applications on page 47
• View Services and Applications on the Blacklist and Remove a Service or Application From the List on
page 48
• View Services and Applications on the Whitelist and Remove a Service or Application From the List on
page 49
• Disable Port Forwarding on page 44
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.
The blacklist and whitelist are mutually exclusive.You can enable either one or the
other.
Note
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.
To set up a blacklist of applications and services:
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.
Secure Your Network
45
LTE Modem Model LB2120

NETGEAR LB2120 Series Specifications

General

Device Type	LTE Modem
LTE Category	Category 4
Download Speed	Up to 150 Mbps
Upload Speed	Up to 50 Mbps
Ethernet Ports	1 x Gigabit Ethernet
Network Technology	LTE, 3G
Antenna Ports	2 x TS-9
Operating Temperature	0° to 40°C
Storage Temperature	-4°F to 140°F (-20°C to 60°C)
Humidity	90% maximum relative humidity, non-condensing
SIM Card Slot	Yes (Mini-SIM/2FF)
Power Supply	12V DC