The Reliable Static Routing Backup using the Object Tracking feature can ensure reliable backup in the case of several catastrophic events, such as Internet circuit failure or peer device failure.
This excellent article shows how to configure Static Route Tracking using IP SLA, so your Cisco router automatically switches between different routes. With the use of IP SLA, the Cisco router can use ICMP echos (PING) to monitor the WAN link and automatically initiate a backup connection in the event of a link failure.
Our legendary step-by-step instructions will teach you how to successfully configure and troubleshoot IP SLA.
This article was written by Sujit Nair who works as a Support Engineer in the Routing Protocol section of Cisco Systems.
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Configuring Cisco IP SLA