--An advertisement message constructed by an attachment of a special extension to a ICMP Router Discovery Protocol (IRDP).
--The method by which a mobile node or mobile router determines whether it is currently connected to its home network or a foreign network and detects whether it has moved and the way it has moved. It is the mechanism by which mobile nodes or mobile routers query and discover mobility agents. Agent discovery is an extension to ICMP Router Discovery Protocol (IRDP) (RFC 1256), which includes a mechanism to advertise mobility services to potential users.
--A request for an agent advertisement sent by the mobile node or mobile router.
--The termination point of the tunnel to a mobile node or mobile router. This can be a collocated care-of address, by which the mobile node or mobile router acquires a local address and detunnels its own packets, or a foreign agent care-of address, by which a foreign agent detunnels packets and forwards them to the mobile node or mobile router.
--A peer with which a mobile node is communicating. A correspondent node may be either stationary or mobile.
--A router on the visited network of a foreign network that provides routing services to the mobile node while registered. The foreign agent detunnels and delivers packets to the mobile node or mobile router that were tunneled by the home agent of the mobile node. For packets sent by a mobile node, the foreign agent may serve as a default router for registered mobile nodes.
--Any network other than the home network of the mobile node.
--An IP address that is assigned for an extended time to a mobile node. It remains unchanged regardless of where the node is attached to the Internet.
--A router on a home network of the mobile node or that tunnels packets to the mobile node or mobile router while they are away from home. It keeps current location information for registered mobile nodes called a mobility binding
--The network, possibly virtual, whose network prefix equals the network prefix of the home address of a mobile node.
--A facility or medium over which nodes communicate at the link layer. A link underlies the network layer.
--The address used to identify an endpoint of some communication over a physical link. Typically, the link-layer address is a MAC address of an interface.
--A home agent or a foreign agent.
--The association of a home address with a care-of address and the remaining lifetime.
--A network that moves with the mobile router. A mobile network is a collection of hosts and routes that are fixed with respect to each other but are mobile, as a unit, with respect to the rest of the Internet.
--A host or router that changes its point of attachment from one network or subnet to another. A mobile node may change its location without changing its IP address; it may continue to communicate with other Internet nodes at any location using its home IP address, assuming that link-layer connectivity to a point of attachment is available.
--A mobile node that is a router. It provides for the mobility of one or more entire networks moving together, perhaps on an airplane, a ship, a train, an automobile, a bicycle, or a kayak. The nodes connected to a network served by the mobile router may themselves be fixed nodes or mobile nodes or routers.
--A collection of security contexts between a pair of nodes that may be applied to Mobile IP protocol messages exchanged between them. Each context indicates an authentication algorithm and mode, a secret (a shared key or appropriate public/private key pair), and a style of replay protection in use.
--maximum transmission unit. Maximum packet size, in bytes, that a particular interface can handle.
--A host or router.
--The process by which the mobile node is associated with a care-of address on the home agent while it is away from home. Registration may happen directly from the mobile node to the home agent or through a foreign agent.
--An interface used by the mobile router to detect foreign agents and home agents while roaming. Registration and traffic occur on the interface.
--security parameter index. The index identifying a security context between a pair of nodes. On the home agent, the SPI identifies which shared secret to use to compute the md5 hash value.
--The path followed by a packet while it is encapsulated from the home agent to the mobile node. The model is that, while it is encapsulated, a packet is routed to a knowledgeable decapsulating agent, which decapsulates the datagram and then correctly delivers it to its ultimate destination.
--A network with no physical instantiation beyond a router (with a physical network interface on another network). The router (a home agent, for example) generally advertises reachability to the virtual network using conventional routing protocols.
--A network other than the home network of a mobile node, to which the mobile node is currently connected.
--The list of mobile nodes visiting a foreign agent.