Series 3: How do I configure failover and failback settings on a CradlePoint router?

If you are not sure what series and model CradlePoint router you have, please click here.

This article was written base upon firmware version 5.1.0.


Description:

Most but not all Series 3 CradlePoint routers can connect to more than one Internet (WAN) service.  If there are more than one WAN sources available the priority of the WAN connections can be specified, and the CradlePoint router will automatically switch over to the next available connection upon a WAN failure.

For example, both a wired Ethernet connection (DSL, cable, satellite, T1, etc.) and a USB cellular data modem.  By default, the router will use a wired connection as the primary connection and if the wired WAN connection fails it will fail over to the cellular modem.

If using a CradlePoint product that allows for multiple cellular modems or multiple wired WAN connections, it is also possible to specify the order in which the WAN connections will be used.  The CradlePoint router can also be configured to ping the target to verify the Ethernet WAN connection state.
 

Directions:

Please consult the following video for a walk-through, or skip to step one.

If you are not sure what series and model CradlePoint router you have, please click here.

This article was written base upon firmware version 5.1.0.


Description:

Most but not all Series 3 CradlePoint routers can connect to more than one Internet (WAN) service.  If there are more than one WAN sources available the priority of the WAN connections can be specified, and the CradlePoint router will automatically switch over to the next available connection upon a WAN failure.

For example, both a wired Ethernet connection (DSL, cable, satellite, T1, etc.) and a USB cellular data modem.  By default, the router will use a wired connection as the primary connection and if the wired WAN connection fails it will fail over to the cellular modem.

If using a CradlePoint product that allows for multiple cellular modems or multiple wired WAN connections, it is also possible to specify the order in which the WAN connections will be used.  The CradlePoint router can also be configured to actively ping a target to verify the Ethernet WAN connection state.
 

Directions:

Please consult the following video for a walk-through, or skip to step one.



Before configuring the Failover and Failback settings in the CradlePoint router verify that each connection works independently.

  1. Log into the administrative console, the default location is http://192.168.0.1.  Click here if you are unsure of how to access the administration pages.
  2. Click the Internet tab then select Connection Manager from the drop-down menu.                                                                                  User-added image
  3. The WAN Interfaces page displays the priority and status of all available WAN interfaces.  In this example, the CradlePoint MBR1400 has a wired Ethernet connection attached to the Blue WAN port, a Sprint Sierra Wireless 250U 3G/4G modem in USB slot 1, and a Verizon Novatel MC760 3G modem in USB slot 2.
  4. The Ethernet port (shown with a green circle) is the WAN interface that is currently connected.  The cellular modems are inAvailable state in case the Ethernet connection fails.  Because Load Balance is not enabled the router will only use the available interface with the highest priority.                                                                                      User-added image
  5. To change the Failure Check settings for the Ethernet port (or any other port) highlight the interface and click the Edit button.                      User-added image
  6. At the WAN Configuration page on the General Settings tab expand the Advanced IPv4 Failure Check option.  (Advanced IPv4 Failure Check is not available on the CTR35 or MBR95)User-added image
  7. To have the router monitor the status of the WAN interface while connected change the Monitor while connected option to Active DNS.  The Idle Check Interval refers to how often the CradlePoint will check the connection.  If the CradlePoint does not receive a response, it will verify the failure was not a one off error and after 5 successive failures, it will automatically initiate fail over to the next available WAN interface.                                                                               User-added image
  8. By default, the CradlePoint will fail back over to the WAN connection once there is at least 20 KB/s of available bandwidth on the interface.  To change the Failback options, expand the ADVANCED Failback Configuration section on the WAN Configuration page. User-added image
  9. To change the failover priority for your WAN interfaces, use the up and down arrows in the WAN Interfaces box.  This example shows that the Verizon MC760 modem has been moved to a higher priority than the Sprint 250U modem.  This setting will ensure that if the wired Ethernet connection fails the router will next use the Verizon MC760 modem before using Sprint 250U modem.       User-added image
  10. For CradlePoint products that support Load Balancing, it is possible to have one or more cellular modem provide a load balanced connection.  The screenshot below shows that the Sierra Wireless 4G modem and Verizon 3G modems have both been added to the Load Balancing pool.  With these settings, the CradlePoint will automatically Load Balance the Ethernet connection if a certain bandwidth threshold is reached on that interface.  For more information about configuring load balancing, refer to Load Balancing Explanation or Load Balancing Configuration.        User-added image
  11. Click Submit to save.

 
NOTE:  CradlePoint products that do not support the Load Balancing feature will not be able to use more than one internet connection at the same time. 


Category: Cradlepoint Series 3

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