| 摘要 |
In a home agent device, a message reception unit receives a request of deleting a registration of a mobile router device which has become in a non-connection state, a binding cache registration deletion reception unit judges that it is for deleting a mobile router device which is not a transmission source, and if a mobile router device of the transmission source has the authority of deleting the registration of the target mobile router device, a proxy deletion reception judgment unit deletes the registration of the requested mobile router, therefore, it can be prevented that packets are transmitted to the mobile router device which has become in the non-connection state.
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