Hi,
Thanks for both of your replies, unfortunately the servers are only configured to respond to the IP, they do not accept HTTP v1.0 or FQDN host values.
This is really an issue with none standard config on the servers, but unfortunately it's coming down to us to sort it out, as our previous load balancer automatically used the server IP in the host value.
We'd considered the option of using an individual monitor for each instance, but we'd need a few hundred of these which would be somewhat of a manual overhead.
What are the issues with using an external monitor, as I've read that these should only be used when a standard monitor will not do?
Thanks again.