said by HELLFIRE:I should also add "depends what you're trying to do here?" That's what you haven't told us yet -- you've asked "how
do I write the rule between iptables to pfsense," but you haven't explained what you want the rule to do in the first
place. Based on your WAN/LAN config, the two possibilities I see are you trying to block a particular subnet from the
WAN coming in, -OR- you're trying to block a particular subnet from the LAN going out.
Which is it, exactly?
I am not an expert in networking but I am pretty sure that the iptables rule in my OP has an exact equivalent in pfSense. I was hoping for answers, not questions.
As to what I am trying to achieve - I am trying to block my local ISP (Rogers) YouTube cache servers per this old thread: »
YouTube cache server bypass trick