HP-UX IPSec version A.02.00 Administrator's Guide

HP-UX IPSec and HP-UX Mobile IPv6
Introduction
Chapter 7 201
Introduction
Mobile IPv6 provides transparent routing of IP data-packets to a mobile
IP device or node, such as a portable computer, regardless of the mobile
node’s point of attachment to the network.
HP provides Mobile IPv6 functionality with the HP-UX Mobile IPv6
product. For more information about HP-UX Mobile IPv6, refer to the
HP-UX Mobile IPv6 product documentation available at the following
URL:
http://www.docs.hp.com/netcom/index.html/HP-UX%20Mobile%20IPv6.
Mobile Node and Home Address
With Mobile IPv6, a client IP node, or Mobile Node (MN), can change
network attachment points and use a single, fixed IPv6 address for
extended periods of time, regardless of its current attachment point to
the network. This address is known as the Mobile Node’s home
address. The Mobile Node’s home address is assigned from its home
network, the network that administers the Mobile Node. The Mobile
Node’s home network is also typically the network to which the Mobile
Node is attached when it is not mobile.
Care-of Address
When a Mobile Node is attached to a foreign network—a network
other than its home network—it gets a temporary Care-of Address
(COA) on the foreign network. The Care-of Address is an IPv6 unicast
global address with the network prefix of the foreign network.
Correspondent Nodes
In Mobile IPv6 architecture, a node that communicates or corresponds
with the Mobile Node is referred to as a Correspondent Node (CN).
Home Agent
The Mobile Node registers its Care-of Address with a router on the
Mobile Node’s home network, known as the Home Agent (HA). The
Home Agent maintains a record of the association, or binding of the