Connectivity for computers with strange static IPs?

[liontaur]

Yea, it's hard to explain, but we often have people bring their laptops here and try to plug into our network. Often these people have some strange static IP, netmask and/or gateway setup and I have to walk them through changing to a dynamic IP setup before they can get connectivity. Then they have to change back to their static IP when they leave.

I seem to recall hearing something about using some ARP method to let computers with strange static IPs work but I can't remember the exact term now. So is there anything like that in pfSense?

Thanks folks!

Mark