I have blocked many CIDR's in my PF rules. When I come to a site that I need to use and is blocked due to a PF rule, I have to add an exception in the PF rules. I do this by adding single IP's to this list.
One thing I noticed is that some of the blocked sites are pingable while others are not. The PF rule blocks all types of traffic to/from, and yet I can ping some of these IP's that are defiantly in the blocked CIDR range.
Whats up with that?
C68
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