How does the “per-user” licensing work?
There are multiple “user” licenses available for some firewall models, per user licensing and unlimited licnesing. For the purposes of these licenses, a “user” is defined as a unique source IP address located on the protected subnet of the firewall. If you have a small or static number of computers, the lower “user” license will work fine. If you have a higher number of computers or fluctuating numbers, or some of those computers have several public IP addresses (such as a webserver hosting multiple IP-based websites), you may require an unlimited or higher license model.