Terminology Specification Version: 1.0 State: approved
Date: 15-Oct-1998 Author: Björn Andersson
Review date: 15-Oct-1998 Reviewed by Jouni Malinen
Approval date: 15-Oct-1998 Approved by Jouni Malinen
The System
The components that are to be implemented during the project and the compents that these interact with.
The Software
The software to be implemented during the project.
Steering Group
The project group (Tom Weckström, Björn Andersson, Dan Forsberg, Jari Hautio, Jouni Malinen, Kimmo Mustonen), Jari Malinen (customer), Hannu Kari (instructor), Kari Alho (teacher in-charge), Reijo Sulonen (professor in-charge) and Jari Vanhanen (course assistant).

The following terms are defined in RFC2002 and are used with the same definitions in this project.

Care-of Address
The termination point of a tunnel toward a mobile node, for datagrams forwarded to the mobile node while it is away from home. The protocol can use two different types of care-of address: a "foreign agent care-of address" is an address of a foreign agent with which the mobile node is registered, and a "co-located care-of address" is an externally obtained local address which the mobile node has associated with one of its own network interfaces.
Correspondent Node
A peer with which a mobile node is communicating. A correspondent node may be either mobile or stationary.
Foreign Agent
A router on a mobile node's visited network which provides routing services to the mobile node while registered. The foreign agent detunnels and delivers datagrams to the mobile node that were tunneled by the mobile node's home agent. For datagrams sent by a mobile node, the foreign agent may serve as a default router for registered mobile nodes.
Foreign Network
Any network other than the mobile node's Home Network.
Home Address
An IP address that is assigned for an extended period of time to a mobile node. It remains unchanged regardless of where the node is attached to the Internet.
Home Agent
A router on a mobile node's home network which tunnels datagrams for delivery to the mobile node when it is away from home, and maintains current location information for the mobile node.
Home Network
A network, possibly virtual, having a network prefix matching that of a mobile node's home address. Note that standard IP routing mechanisms will deliver datagrams destined to a mobile node's Home Address to the mobile node's Home Network.
A facility or medium over which nodes can communicate at the link layer. A link underlies the network layer.
Link-Layer Address
The address used to identify an endpoint of some communication over a physical link. Typically, the Link-Layer address is an interface's Media Access Control (MAC) address.
Mobile Node
A host or router that changes its point of attachment from one network or subnetwork 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 (constant) IP address, assuming link-layer connectivity to a point of attachment is available.
Mobility Agent
Either a home agent or a foreign agent.
Mobility Binding
The association of a home address with a care-of address, along with the remaining lifetime of that association.
A host or a router.
A randomly chosen value, different from previous choices, inserted in a message to protect against replays.
Security Parameter Index (SPI)
An index identifying a security context between a pair of nodes among the contexts available in the Mobility Security Association. SPI values 0 through 255 are reserved and MUST NOT be used in any Mobility Security Association.
The path followed by a datagram while it is encapsulated. The model is that, while it is encapsulated, a datagram is routed to a knowledgeable decapsulating agent, which decapsulates the datagram and then correctly delivers it to its ultimate destination.
Virtual Network
A network with no physical instantiation beyond a router (with a physical network interface on another network). The router (e.g., a home agent) generally advertises reachability to the virtual network using conventional routing protocols.
Visited Network
A network other than a mobile node's Home Network, to which the mobile node is currently connected.
Visitor List
The list of mobile nodes visiting a foreign agent.