COMPUTER NETWORKING

Detailed explanation-1: -The foreign agent is a router on the network visited by the mobile node. When it moves to another network, the mobile node registers with a foreign agent and obtains a care-of address from that agent. The foreign agent sends its address to the mobile node’s home agent.

Detailed explanation-2: -1 A mobile node (MN) is a node that is capable of changing its point of attachment to the network across layers, namely layer 2 or layer 3. A mobile node may be either a mobile host (with no forwarding functionality) or a mobile router (with forwarding functionality). A mobile node can have multiple interfaces.

Detailed explanation-3: -A foreign agent is a router that stores information about mobile nodes visiting its network. Foreign agents also advertise care-of-addresses which are used by Mobile IP. A binding is the association of the home address with a care-of address.