| 摘要 |
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.
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