The route-map manager supports the assigning of an ICMP probe to monitor a next hop IP address. The route-map facility uses the tracked object manager to monitor the IP address, but the ICMP probe is not assigned to a specific route-map. If a next hop IP address is declared down, it is removed from the next hop selection process for all route-maps specifying this address as a next hop, until it is declared up again. The assigned ICMP probe will ping port 0 of the specified IPv4 or IPv6 address.
Use the route-map probe command in router configuration mode to assign an ICMP probe to monitor the specified next hop IP address. Create a probe, using the probe command. A default ICMP probe cannot be specified by name. Use the default keyword to assign the default policy based routing ICMP probe.