Now and then we're asked if Four51 can filter by IP. An IP router can allow or disallow the flow of very specific types of IP traffic. This capability, called IP packet filtering, provides a way for the network administrator to precisely define what IP traffic is received and sent by the router. IP packet filtering consists of creating a series of definitions called filters, which define for the router what types of traffic are allowed or disallowed on each interface.

Four51 and its IaaS partner, OneNeck IT Solutions, do not support IP filtering. It's not possible to restrict access to a specific buyer's ordering site from all but a defined range of IP addresses.