I am asking because I am trying to set up a DMZ... The DMZ HOST actually resides ON the 'Inside' MACHINE as a VM, but from a 2nd NIC.
So, OMV eth1 is 192.168.2.181 but the VM in the DMZ is on eth2 172.16.1.2. Defeats the purpose of a DMZ if the network is allowing free open communication. What I want is CONTROLLED access via the outer 'DMZ-to-INSIDE' ACL... If I use the Firewall option on OMV It only allows me to BLOCK Networks/IP's.. But then this will block the access from the Router.
SO Can I simply block communication between the 2 INTERFACES on OMV side.