Description:
Some scenarios require, that the mobile modem used for a backup connection is not logged in the mobile network permanently (e.g. in roaming scenarios). This can be implemented by using the mobile connection as a Cold-Standby. The mobile modem logs into the mobile network only in the backup case.
This article describes how to set up a Cold-Standby for a mobile connection.
A Cold-Standby can only be used in combination with a backup connection. A Cold-Standby cannot be used with Administrative Distances as in this case the mobile modem is logged in the mobile network permanently.
Requirements:
- LCOS as of version 10.80 Rel (download latest version)
- LANtools as of version 10.80 Rel (download latest version)
- LANCOM mobile router
Procedure:
1) Setting up a mobile connection as backup:
Set up a mobile connection as backup. The procedure is described in the following Knowledge Base article:
Backing up an Internet connection with mobile communication (4G/5G)
2) Activating Cold-Standby for the mobile connection:
2.1) Open the router configuration in LANconfig and go to the menu Interfaces → WAN → Mobile profiles.
2.2) Select the Mobile profile created in step 1) and click Edit.
2.3) For Cold-Standby select the option Yes.
2.4) This concludes the configuration of the Cold-Standby. Write the configuration back to the router.
As of LCOS 10.80 RU1 the state in the CLI path Status/Modem-Mobile/ State is shown as Ready(Cold-Standby) when Cold Standby is active (was Deactivated in LCOS 10.80 Rel).
The State will also be shown in LANmonitor as of version 10.80 RU1.
