Installation with only 1 variable ip address

[jovannig]

Hi.
I have a network with 3 pcs and a adsl router that connects to the internet with 1 ip not fixed.
I set up a new pc with pfsense and 2 network cards and want to control  internet usage.
How can I set it up?

Thanks

Giovanni

[Cry Havok]

That's how most home setups work, there's nothing special about your configuration.

Plug the pfSense WAN port into the Internet connect, plug a switch into the LAN connection (and the PCs into the switch).  Configure pfSense to suit and away you go.