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Netgear LB1120 User Manual - Page 23

Manage Router Mode and Bridge Mode, To change the modem from Router mode to Bridge mode

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LTE Modem LB1120 and LB1121 Manage Router Mode and Bridge Mode By default, Router mode is enabled on the modem. By connecting the modem to an Ethernet switch or hub, you can connect multiple Ethernet devices such as printers, credit card terminals, and computers to the modem. In Router mode, Network Address Translation (NAT) is enabled, the built-in Dynamic Host Configuration Protocol (DHCP) server is enabled to assign a LAN IP address to each connected device, and IP pass-through (IPPT) is disabled. In Bridge mode, only a single device can be connected to the Internet through the modem. This device can be a computer, router, or WiFi router. In Bridge mode, Network Address Translation (NAT) is disabled, the DHCP server is disabled, and IPPT is enabled. Because IPPT is enabled in Bridge mode, Bridge mode can be useful for implementing a virtual private network (VPN), point-to-point, or remote management connection to a single device that is connected to the modem. Such connections usually require that a public IP address is assigned to the modem's WAN port, and through IPPT, to the device that is connected to the modem. For Bridge mode, you can also specify the LTE netmask. To change the modem from Router mode to Bridge mode, or the other way around: 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. Note The diagnostics feature on the LAN page is intended for NETGEAR technical support only. By default, the Enable Diagnostics Off radio button is selected. 6. Do one of the following: • To enable Bridge mode, select the Bridge radio button. As an option, enter a different IP address in the IP Address field and an LTE network mask in the Netmask (LTE) field. When the modem functions in Bridge mode, the default LTE network mask setting (255.255.255.0) works with most routers. If the modem and router do not operate together, adjust LTE network mask. • To enable Router mode, select the Router radio button. Manage the Modem LAN Settings 23

Section	Page
Contents	3
1. Introduction and Hardware Overview	6
Introduction	7
Supported Mobile Broadband Bands	7
Package Contents	8
Install the Micro SIM Card	8
Top Panel With Status LEDs	11
Back Panel With Connectors, Buttons, and a Port	12
Modem Label	12
Position the Modem	13
Optional External Antenna	14
2. Get Started	15
Internet Connection Over Mobile Broadband	16
Connect a Computer, Switch, Hub, Router, or WiFi Router to the Modem	16
Connect a Computer to the LAN Port of the Modem	17
Connect a Router or WiFi Router to the LAN Port of the Modem	17
Access the Modem’s Web Pages for the First Time	17
Change the Language	19
3. Manage the Modem LAN Settings	20
Change the LAN Settings	21
Manage Router Mode and Bridge Mode	23
Change the DHCP Server Settings	24
Disable the DHCP Server	26
Enable the DMZ	27
Disable VPN Pass-Through	28
4. Manage the Mobile Broadband Connection	29
Manage Mobile Broadband Auto Connect Options	30
Manually Connect to or Disconnect From the Mobile Broadband Network	31
Manage APN Profiles for Mobile Broadband Connections	31
View APN Profiles or Add a Custom APN Profile	32
Select an APN Profile	34
Change an APN Profile	35
Remove an APN Profile	36
5. Secure Your Network	37
Change the Modem Password	38
Manage Port Forwarding for Incoming Traffic	38
Enable Port Forwarding and Add a Service or Application	39
Remove a Service or Application for Port Forwarding	40
Disable Port Forwarding	41
Manage Port Filtering for Outgoing Traffic	42
Block Specific Services and Applications From Accessing the Internet and Allow All Other Services and Applications	42
Allow Specific Services and Applications to Access the Internet and Block All Other Services and Applications	44
View Services and Applications on the Blacklist and Remove a Service or Application From the List	45
View Services and Applications on the Whitelist and Remove a Service or Application From the List	46
Disable Port Filtering	47
Manage SIM Card Security	48
Enable SIM Card Security	48
Enter the SIM PIN to Enable the Modem to Connect to the Internet	50
Personalize the SIM PIN	51
Disable SIM Card Security	52
Unblock the SIM Card With a PUK	54
6. Manage the Modem and Monitor Usage and the Network	56
Upgrade the Firmware of the Modem	57
Back Up and Restore the Modem Settings	58
Back Up the Settings	58
Restore the Settings	59
Return the Modem to Its Factory Default Settings	59
Use the Reset Button	60
Use the Modem’s Web Pages to Reset the Modem to Factory Defaults	60
View Monthly Data and Session Data Usage	61
Set a Plan Limit for the Data Counter	62
Change the Billing Cycle Counter or Reset the Data Counter	63
View Service Provider, Type of Service, and Signal Strength	63
View Account Details and Other Details About Your Modem	65
View Information About the Mobile Broadband Connection	66
Set Up SMS Alert Messages	67
Set the Data Limit for SMS Alert Messages	69
View Alerts	70
Turn Off the LEDs	71
7. Manage SMS Messages	72
Manage Incoming SMS Messages	73
Send an SMS Message	74
8. Frequently Asked Questions	75
What do I do when I can’t connect a device to the modem?	76
What do I do when I can’t access the Internet?	76
What do I do when the No Signal icon displays?	76
Why does the Signal Strength LED show only a few bars?	76
Why is the download or upload speed slow?	76
Can I connect multiple LAN devices to the modem?	77
How do I access the modem’s web pages?	77
What do I do if I forget my admin login password?	77
How do I disconnect from the mobile broadband network?	77
How do I find my computer’s IP address?	78
How do I find a device’s MAC address?	79
How do I find my mobile phone number?	81
Where can I find more information?	81
9. Alerts and Troubleshooting	82
Alert Messages	83
Quick Tips for Troubleshooting	83
Verify Normal Behavior With the LED Bars	84
Troubleshoot With the LED Bars	84
Power LED Bar Is Off	85
Power LED Bar Blinks Amber Fast and an Individual Signal and Strength LED Bar Lights Solid Green	85
LAN LED Is Off	86
You Cannot Log In to the Modem	86
Troubleshoot the Mobile Broadband Internet Connection	87
Obtain an Internet IP Address From Your Service Provider	87
Troubleshoot Internet Browsing	88
Changes Not Saved on the Modem’s Web Pages	88
TCP/IP Network Not Responding	88
Test the LAN Path to Your Modem	88
Test the Path From Your Computer to a Remote Device	89
A. Default Settings and Specifications	90
Factory Default Settings	91
Technical and Environmental Specifications	92
B. Wall-Mount the Modem	93
Position Your Modem	94

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Manage Router Mode and Bridge Mode

By default, Router mode is enabled on the modem. By connecting the modem to an Ethernet switch or hub,

you can connect multiple Ethernet devices such as printers, credit card terminals, and computers to the

modem.

In Router mode, Network Address Translation (NAT) is enabled, the built-in Dynamic Host Configuration

Protocol (DHCP) server is enabled to assign a LAN IP address to each connected device, and IP pass-through

(IPPT) is disabled.

In Bridge mode, only a single device can be connected to the Internet through the modem. This device can

be a computer, router, or WiFi router. In Bridge mode, Network Address Translation (NAT) is disabled, the

DHCP server is disabled, and IPPT is enabled.

Because IPPT is enabled in Bridge mode, Bridge mode can be useful for implementing a virtual private

network (VPN), point-to-point, or remote management connection to a single device that is connected to

the modem. Such connections usually require that a public IP address is assigned to the modem’s WAN

port, and through IPPT, to the device that is connected to the modem. For Bridge mode, you can also specify

the LTE netmask.

To change the modem from Router mode to Bridge mode, or the other way around:

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.

In the address field of your browser, enter

http://192.168.5.1

The limited Dashboard page displays.

If you did not select the

Remember me

check box when you logged in previously, enter the modem

password in the

field.

See the modem label for the default password.

Click the

button.

The full Dashboard page displays.

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

Do one of the following:

•

To enable Bridge mode, select the

Bridge

radio button. As an option, enter a different IP address

in the

IP Address

field and an LTE network mask in the

Netmask (LTE)

field.

When the modem functions in Bridge mode, the default LTE network mask setting (255.255.255.0)

works with most routers. If the modem and router do not operate together, adjust LTE network mask.

•

To enable Router mode, select the

Router

radio button.

Manage the Modem LAN Settings

LTE Modem LB1120 and LB1121