Question

A network engineer wants a static default route to a primary ISP to automatically fail over to a backup ISP when the primary next-hop becomes unreachable, even though the physical interface to the primary ISP stays up. The engineer configures an IP SLA ICMP echo operation targeting an address across the primary ISP link. Which additional configuration is REQUIRED to make the floating static route react to the IP SLA results?

Accepted Answer

Associate the primary static route with a track object that is tied to the IP SLA operation's reachability, and configure the backup route with a higher administrative distance

Answer

Configure the IP SLA operation with a lower administrative distance than the backup route so it takes precedence automatically

Answer

Apply the IP SLA operation directly to the primary interface using the 'ip sla monitor interface' command so the route is withdrawn on failure

Answer

Set both static routes to the same administrative distance and let the IP SLA operation load-balance between them