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Block private Networks on outside interfaces?

NewImage
I have a policy where 
The firewall will not accept traffic on its external interfaces that appear to be coming from internal network addresses.

Where is this option set, is this spoofing protection?


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  • 0
    Yes, spoofing protection provides that coverage.

    You can also create firewall rules bound to an interface, but
    a. be careful not to make a mistake
    b. many ISPs use RFC1918 addresses for their DHCP servers, etc. so you might not want to block them.

    Barry