Health monitor to mark pool member up when a ping FAILS (inverse ping health check)

It sounds like you are trying to set up a service redundancy/failover solution. If that is the case, in the absence of details of your business requirement, it could be suggested that you would be better off setting up a health monitor for your remote service with a more reliable protocol than ICMP; e.g. an HTTP service, which is much easier and handy to set up.