Can't allow RFC1918 clients in Firewall Rules



  • My ISP has a local area network which consists of it's clients. Each client host has a LAN IP address. My pfSense server is used in a commercial environment, so it has only a real IP address, but I need to send and recieved traffic from LAN clients as it is routed by ISP.
    The problem is that when I allow RFC1918 clients in Firewall Rules all Traffic stops for some reason after 20-30 minutes. Please help me to resolve this issue!



  • What do you mean by "allow rfc1918 clients in firewall rules"?  All you should need is to uncheck the box that says to block private IP addresses…



  • So when I uncheck it the traffic stops. I mean this checkbox.


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