Maximum Transmission Unit. The size, given in octets, that can be transmitted over a link. For example, the MTU of an Ethernet is 1500 octets.
An IP address that identifies a group of interfaces in a particular way. A packet that is sent to a multicast address is delivered to all of the interfaces in the group.
A response to a neighbor solicitation message or the process of a node sending unsolicited neighbor advertisements to announce a link-layer address change.
An IP mechanism that enables hosts to locate other hosts that reside on an attached link.
A solicitation that is sent by a node to determine the link-layer address of a neighbor. A neighbor solicitation also verifies that a neighbor is still reachable by a cached link-layer address.
A designation that uniquely identifies the mobile node in the format of user@domain.
Network adapter that is either internal or a separate card that serves as an interface to a link.
A host or a router.
A group of information that is transmitted as a unit over communications lines. Contains a header plus payload.
A node's attachment to a link. This attachment is often implemented as a device driver plus a network adapter. Some network adapters can have multiple points of attachment, for example, qfe. The usage of network adapter in this document refers to a "single point of attachment."
The set of physical interfaces on a system that are connected to the same link. These interfaces are identified by assigning the same (non-null) character string name to all the physical interfaces in the group.
A name that is assigned to a physical interface that identifies the group. The name is local to a system. Multiple physical interfaces, sharing the same group name, form a physical interface group.
Public Key Infrastructure. A system of digital certificates, Certificate Authorities, and other registration authorities that verify and authenticate the validity of each party involved in an Internet transaction.
An IP address that is not routable through the Internet.
A cryptographic system that uses two keys - a public key known to everyone and a private key known only to the recipient of the message. IKE provides public keys for IPsec.
In a router, to inform a host of a better first-hop node to reach a particular destination.
The process by which a mobile node registers its care-of address with its home agent and foreign agent when it is away from home.
The process of detecting when a NIC or the path from the NIC to some layer-3 device starts operating correctly after a failure.
A tunnel that starts at the mobile node's care-of address and terminates at the home agent.
The process of routers advertising their presence together with various link and Internet parameters, either periodically or in response to a router solicitation message.
The process of hosts locating routers that reside on an attached link.
The process of hosts requesting routers to generate router advertisements immediately, rather than at their next scheduled time.
A method for obtaining digital signatures and public-key cryptosystems. The method was first described in 1978 by its developers, Rivest, Shamir, and Adleman.
Security Associations Database. A table that specifies cryptographic keys and algorithms that are used in the transmission of data.
Associations that specify security properties from one host to another.