Dynamic Home Agent Address Discovery
A mobile node may not know the address of its home agent when it wants to send a Binding Update message for home registration. For example, if a mobile node reboots on a foreign network, there is no information about the home agent unless such information is preconfigured.
The Dynamic Home Agent Address Discovery mechanism is used to get the address information of home agents when a mobile node is in a foreign network. A mobile node sends a Dynamic Home Agent Address Discovery request message when it needs to know the address of its home agent. The source address of the message is a care-of address of a mobile node and the destination address of the message is a home agent anycast address, which can be computed ...
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