Best way to pass-thru Public IP with PfSense

Networking & Firewalls
1

I have (5) five Public IPs that I pay for each month. I use the first one for everything but VOIP. I use the 2nd IP directly on my VOIP-PBX so I don’t have to NAT. I would like to run the 2nd IP thru a firewall such as PfSense for my firewall. What is the best way to protect my VOIP PBX, can I use PfSense with VOIP to avoid using NAT and what is the best way of doing this. TIA

2

I never set it up that way, but they have it documented here
https://docs.netgate.com/pfsense/en/latest/recipes/route-public-ip-addresses.html

3

Thanks for your response. How would you do it?

4

We assign all the IP’s to our WAN and have pfsense and use NAT.

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