Currently, networks are used within most enterprises to allow for sharing
of resources such as printers and to allow for central server features to
be available such as backup operations, shared files, and internal email.
With the introduction of the third generation of wireless communication
networks in which a mobile station can have an always on capability,
private networks can now be established between mobile stations. In these
implementations, the mobile stations each have a Home Location
Registration (HLR) and a unique Internet Protocol (IP) address. The
mobile stations within a private network are listed within a table stored
in the intelligent peripheral by their HLRs. The intelligent peripheral
regulates the flow of data units within the wireless network by
determining if the sender of a packet and the intended recipient are
within the same private network.