Overview

Home Agent support for Mobile IPv6 Mobile Nodes moving throughout the Internet

Correspondent Node support for communicating or corresponding with IPv6 Mobile Nodes

Route Optimization support for improving data transmission rates between Mobile Nodes and Correspondent Nodes by reducing the number of hops the data traverses (bypassing the Home Agent).

Return Routability Procedure support for securing Route Optimization between Mobile Nodes and Correspondent Nodes.

Dynamic Home Agent Address Discovery support to allow Mobile Nodes to dynamically find the address of a Home Agent on its home network when it needs to register its Care-of Address while away from home.

Prefix Discovery support to allow Mobile Nodes to learn prefix information about its home network for configuring its home address while away from home.

Multi-processor Scaling support to increase the number of Mobile IPv6 Kernel Module instances processing mobility message headers on a system.

Compatibility with HP-UX IPSec A.02.00 to secure the Mobile IPv6 messaging between the Home Agent and Mobile Node. Monitor http://www.software.hp.com for HP-UX IPSec A.02.00 availability.

Dynamic-configuration support to change mobility settings without restarting the HP-UX Mobile IPv6 Kernel module.

System Administrator Utilities to create configuration files and to administer the Mobile IPv6 sub-system change mobility settings without restarting the Mobile IPv6 Kernel module.

IPv4 addresses are 32 bits long—IPv6 addresses are 128 bits long, which almost surely eliminates the possibility of using-up all the addresses in IPv6.

Mobile IPv4 uses tunnel routing to deliver data-packets to Mobile Nodes—Mobile IPv6 uses tunnel routing and source routing with IPv6 Type 2 routing headers.

Mobile IPv4 deploys Foreign Agents for Mobile Node movement detection and to decapsulate data-packets addressed to the Mobile Node’s Care-of Address—Mobile IPv6 Mobile Nodes decapsulate messages sent to its Care-of Address itself and uses IPv6 Router Advertisements for movement detection, thereby eliminating the need for Foreign Agents.

Mobile IPv4 uses Agent Discovery for Movement Detection—Mobile IPv6 uses IPv6 Router Discovery.

Mobile IPv4 Route Optimization is an extension to the protocol, not part of the base RFC; requires pre-configured and static security associations; and, was difficult to operate with ingress-filtering routers—Mobile IPv6 Route Optimization is a fundamental part included in the protocol; provides integrated Return Routability to dynamically secure Route Optimization; and, operates effectively with ingress-filtering routers.

Mobile IPv4 reverse tunneling is an extension to the protocol—Mobile IPv6 bi-directional tunneling is part of the core protocol.

Mobile IPv4 uses one Home Address—Mobile IPv6 uses a globally routable Home Address and a link-local Home Address.

Mobile IPv4 uses ARP to determine the link layer address of neighbors—Mobile IPv6 uses IPv6 Neighbor Discovery and is de-coupled from any given link layer.

Mobile IPv4 Dynamic Home Agent Address Discovery uses a directed broadcast approach and returns separate replies from each Home Agent to the Mobile Node—Mobile IPv6 Dynamic Home Agent Address Discovery uses anycast addressing and returns a single reply to the Mobile Node.

Mobile IPv4 Mobile Nodes can obtain Care-of Addresses via Agent Discovery, DHCP, and manual configuration—Mobile IPv6 Mobile Nodes can obtain Care-of Addresses via Stateless Address Auto-configuration, DHCP, and manual configuration

Mobile IPv4 uses Foreign Agent Care-of Address and a co-located Care-of Address—Mobile IPv6 Care-of Addresses are all co-located.