I still have an old Cyberoam CR100ia (yes, I know it's end of life) and am wondering if anyone can help me with a firewall rule. I am using a virtual host for passing traffic to my mail server. I have a rule allowing any IP to my NAT destination/services, which works fine. I have an outside IP that I'm trying to block, but my allow rule takes priority over my block rule. Is there anything like a rule that allows any IP EXCEPT x.x.x.x, or a way to make my block rule a higher priority over the allow?
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