The router constantly tries to establish the standard connection while the backup connection is active. As soon as the standard connection has been established, the backup connection is terminated and the line monitoring with LCP or ICMP polling is resumed.
Only keep alive connections return automatically!
The standard connection will only be automatically reestablished after a backup event if the hold time for the connection is configured properly:
- A hold time of "0" means that the connection will not be actively terminated. If the connection is terminated or interrupted due to interference, it will not be automatically established again. The connection will only be reestablished when communication is required of it.
- A hold time of "9999" means that the connection is permanently held open. If it is interrupted, then the connection will be actively opened up again. This behavior is known as keep alive.
Set the hold time to "9999" for connections to the Internet provider (in the corresponding name list) and backed-up VPN connections (in the VPN connection list) to ensure that the connection is automatically reestablished and resumes data transfer after interruption.
