I'm trying to track the status of a LAN. Where it's working, servers attached, HSRP operating correctly.
I would like to build a probe that would just ask "is anyone on the LAN?". I know I can do PING to x.x.x.255/24 and get multiple answers. One answer would prove someone is connected and the LAN segment is working. However, IP SLA ICMP-ECHO does not allow a destination address of a broadcast address (255.255.255.255). When a directed broadcast IP address is used (10.23.23.255/24) is used, the debug ip packet detail indicates "encapsulation failure" - no MAC was returned when the address was ARP'd. Tried a static ARP entry, it said it sent it, but no responses. Ping works, but SLA ICMP-ECHO does not.
Any suggestions on how to probe a LAN and then object track it?