Refer to the following requirements to determine which hosts on your network might serve as good targets:
Make sure that the prospective targets are available and running. Make a list of their IP addresses.
Make sure that the target interfaces are on the same network as the IPMP group that you are configuring.
Make sure that the netmask and broadcast addresses of the target systems are the same as the addresses in the IPMP group.
Make sure the target system is able to answer ICMP requests from the interface that is using probe-based failure detection.