A foreign agent routes data packets according to policy based routing
information maintained by the home network. The policy may be network
based or may be subscriber profile based as defined in an authentication,
authorization, and accounting server. The policy routes data packets
according to one of an address specified in the mobile IP header and an
application type. The address specified in the mobile IP header is
typically within a range of addresses within the home network. The
foreign agent routes data packets of the specified policy type directly
to the home agent server. Data packets that are not of the specified
policy type are routed directly to an Internet access point.