Monitoring HTTP service on different IPs on the same host

I guess there is a misunderstanding.
Basically there is a bug in checmk because the macros $_HOSTADDRESSES_4_0$, $_HOSTADDRESSES_4_1$ and so on are not available even that at least the check Ping is using it.

Please carefully read my post:

I used this as a workaround only:

I will open a ticket and let Tribe29 fix it.