I have some pieces of software that use "loopback" but not really traditional loopback. They us the "real" IP address of the computer instead of localhost or 127.0.0.1 I wonder if there is a way to set loopback to include IP addresses assigned to the host. I can't change the way a vendors software works.
I am not sure how to address this with centralized rules other than saying 192.168.10.10 can talk to 192.168.10.10 but I have dozens that need to talk to themselves and I am not too psyched to add all those rules.
Any ideas on what to do?
Ah. I see. The rule only really needs the remote set to "Any Local IP" right? No need to specify a local address, right since the value is relative to the local machine?
Allow any traffic where the remote address is [local].
It depends on what blocked network traffic you're seeing in the log. You have to make sure you write the firewall rule correctly according to how the traffic is being blocked.