D-Link DRO-210i manual High Availability, Auto Backup, Backup Configuration

High Availability

High Availability

The High Availability support in the router is an ideal solution for businesses requiring uninterrupted, low cost internet connectivity. The router supports Dual Ethernet WAN Ports for xDSL connectivity. Though xDSL connectivity is cheap, it is more susceptible to outages. Hence with two xDSL links, DRO-210i guarantees uninterrupted internet connectivity.

High Availability is made possible through two key features in the router - Auto Backup and Load Balancing.

5.1 Auto Backup

The Auto Backup feature enables one of the WAN links to function as the Primary WAN Link, and the other as the Backup Link. When the Primary Link fails, the Backup Link will become operational and traffic will switchover to this link. And when the Primary Link becomes serviceable, the traffic will automatically switchback to the Primary Link.

Select Interface → AutoBackup to configure the Backup Configuration as explained below.

Web UI

Backup Configuration

Primary	The primary interface for which Auto Backup functionality can be
	configured.
Backup-Mode	If Enabled, the configured backup interface will be connected
	automatically when the Primary interface goes down.
Backup Interface	This interface will be configured as backup interface for the primary and
	cannot be the primary interface at any time.

When the Primary Link fails, all configurations (other than VPN and SIP-ALG) made for the Backup Interface will become active. That is, the connection type for the WAN interface, Static Routes configured on this interface, NAT configured on this interface etc. will be automatically activated on the backup interface. And when the Primary Link becomes UP, the configurations on the Backup interface will be disabled and the configurations on the Primary Interface will be made active. This switchover and switchback will occur automatically without need for user intervention.

Dlink DRO-210i User Guide 28