High Availability is a feature in DrayTek dual and multi-WAN routers that automatically switches hardware, e.g. a standby router, when a primary router fails for whatever the reasons (loss of power, hardware failure, etc.).
In this Demo , we will use Hot- standby mode with 2 x Vigor 2926 . This should be similar to all DrayOs routers such as 2927 and 2962 etc..