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HP-UX Mobile IPv6 A.01.02

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Overview


HP-UX Mobile IPv6 A.01.02 implements the Mobile IPv6 protocol, which uses and expands several IPv6 protocol mechanisms. HP-UX Mobile IPv6 A.01.02provides mobility support for IPv6 on the HP-UX 11i version 2 September 2004release servers.

With Mobile IPv6, Mobile Nodes such as laptops, PDAs, and cellular phones, remain reachable and retain their network connections while moving and attaching to the network from different locations. Each Mobile Node sends and receives IP data packets using a single, fixed IPv6 address�known as its Home Address�for an extended period regardless of its location. HP-UX Mobile IPv6 A.01.02 is not Mobile Node client software.

Without Mobile IPv6, Mobile Nodes cannot use a single, fixed IPv6 address while they roam. Instead, each time a Mobile Node moves and changes network attachment points, it must manually re-configure a new IP address and default router based on its current location�temporarily losing its network connections and ability to communicate in the process.

The Mobile Node�s Home Address is an IPv6 unicast routable (global) address with a network prefix on the Mobile Node�s Home Network. The Mobile Node�s Home Network is the network that administers the Mobile Node, and the network to which the Mobile Node is normally attached.

When a Mobile Node is attached to a Foreign Network�any network other than its Home Network�it gets a temporary Care-of Address on the Foreign Network that identifies its current point of attachment to the Internet. The Care-of Address is an IPv6 unicast global address with the network prefix of the Foreign Network. The Mobile Node can get this address using IPv6 stateless autoconfiguration, or by using a stateful configuration method such as DHCPv6.

HP-UX Mobile IPv6A.01.02 Components

HP-UX Mobile IPv6 A.01.02 includes a kernel-resident STREAMS module,mip6mod, that processes and generates IPv6 Mobility Headers, and utilizes the HP-UX IPv6 Router Advertisement Daemon to provide the following server functionality:

  • Home Agent support
  • Correspondent Node support

Home Agent Support

Home Agents are nodes or routers that provide mobility services to Mobile Nodes from their home network. During Mobile IPv6 basic operation, a Mobile Node gets a temporary Care-of Address identifying its current location after it travels to a foreign network. The Home Agent intercepts data packets sent to the Mobile Node�s Home Address and transparently routes them to the Mobile Node�s current Care-of Address on the foreign network.

Correspondent Node Support

Correspondent Nodes are any IPv6 node communicating or corresponding with a Mobile Node, for example Web servers providing location-sensitive resources to Mobile Nodes. In most cases, the Mobile Node and Correspondent Node communicate using Route Optimization. Mobile IPv6 basic operation is only used in the initial communication, when the Correspondent Node does not have information about the Mobile Node�s Care-of Address, and in cases where the Correspondent Node does not support Mobile IPv6 Route Optimization.

Features and Benefits

HP-UX Mobile IPv6 A.01.02 provides the following features:

  • IETF Standards Conformance
  • Compatibility with HP-UX IPSec A.02.00
  • Route Optimization
  •  Return Routability Procedure
  • Dynamic Home Agent Address Discovery
  • Prefix Discovery
  • IPsec/IKE Dynamic Keying Support
  • Multi-Processor Scaling
  • Administration and Configuration File Tools
  • nettl and netfmt Tool Support
  • Multi-Vendor Interoperability and Conformance Testing

IETF Standards Conformance

HP-UX Mobile IPv6 is based on the following IETF standards that can be found at http://www.ietf.org:

  • RFC 3375 (Mobility Support in IPv6)
  • RFC 3776 (Using IPsec to Protect Mobile IPv6 Signaling between Mobile Nodes and Home Agents)

Compatibility with HP-UX IPSec A.02.00

HP-UX IPSec A.02.00 secures the Mobile IPv6 traffic between the Mobile Node and Home Agent. You can download HP-UX IPSec A.02.00 from HPE Software depot, https://h20392.www2.hpe.com/portal/swdepot/index.do.

Route Optimization

In most cases, the Mobile Node and Correspondent Node communicate using Route Optimization, which improves data transmission rates between the two nodes. With Route Optimization, the Mobile Node and Correspondent Node communicate directly with each other and bypass the Home Agent. The Correspondent Node sends packets directly to the Mobile Node�s Care-of Address, and the Mobile Node sends packets directly to the Correspondent Node.

Return Routability Procedure

The return routability procedure provides reasonable proof to the Correspondent Node that it can contact the Mobile Node through both the Home and Care-of Addresses; thereby, protecting the Correspondent Node from attackers that send false Binding Update messages. In this procedure, the Mobile Node exchanges messages with the Correspondent Node using both the Mobile Node�s Home and Care-of Addresses and builds a shared key. The Mobile Node uses this shared key to attach a cryptographic signature to the Binding Update message, which the Correspondent Node authenticates to obtain the proof.

Dynamic Home Agent Address Discovery

With Dynamic Home Agent Address Discovery, a Mobile Node only needs a home network prefix configured and it can dynamically find the address of a Home Agent on its home network when it needs to register its Care-of Address.

Prefix Discovery

Prefix Discovery allows a Mobile Node to get network prefix information about its Home Network and to configure its Home Address if needed. The Home Agent monitors prefix information from Router Advertisement messages on the Home Network. The Mobile Node can request prefix information by sending a Mobile Prefix Solicitation message to the Home Agent.

IPsec/IKEDynamic Keying Support

Dynamic keying uses the Internet Key Exchange (IKE) v1 protocol to ensure that pre-configured static keys are not exposed for long periods of time. IPSec can provide anti-replay protection only if dynamic keying is used. HP-UX Internet Protocol Security (IPSec) version A.02.01 is required for dynamic keying support with HP-UX Mobile IPv6. For more information on dynamic keying, refer to Installing and Administering HP-UX IPSec at http://h20565.www2.hpe.com/hpsc/doc/public/display?sp4ts.oid=4164811&docId=emr_na-c02035738&docLocale=en_US.

Multi-Processor Scaling

HPE designed and implemented HP-UX Mobile IPv6 for multi-processor scaling in environments using high-end systems supporting a large number of Mobile Nodes. Scaling the number of processors increases the number of Kernel-module instances processing IPv6 mobility message headers on the system.

Administration and Configuration File Tools

HP-UX Mobile IPv6 includes a command line administration tool, mip6admin,to administer the HP-UX Mobile IPv6 kernel-resident STREAMS module. mip6admin performs several critical functions including; starting, stopping, and dynamically-reconfiguring mip6mod.

HP-UX Mobile IPv6 also includes a command line tool, mip6config, to quickly create, edit, and verify mip6mod Mobile IPv6configuration files. The mip6config tool verifies mip6mod configuration parameters you configure and displays error messages after detecting invalid syntax or values.

nettland netfmt Tool Support

HPE enhanced the nettl data packet tracing tool and the netfmt formatting tool to support HP-UX Mobile IPv6.

Documentation

Refer to the HP-UX Mobile IPv6 documentation at for documentation.


Manpages

The following is a list of manpages you can access by using the man [manpage-name] command:

  • HP-UX Mobile IPv6

mip6mod Information about mip6mod, the Mobile IPv6Kernel STREAMS module

mip6admin Information about mip6admin, the Mobile IPv6administration tool

mip6.conf Information about mip6.conf, the Mobile IPv6configuration file

mip6config Information about mip6config, the MobileIPv6 configuration file tool

  • Router Advertisement Daemon

rtradvd Information about rtradvd, the IPv6 Router Advertisement Daemon

rtradvd.conf Information about rtradvd.conf, the IPv6 Router Advertisement Daemon configuration file


IETF Documentation

HP-UX Mobile IPv6 is based on the following IETF standards that can be found at http://www.ietf.org:

  • RFC 3775 (Mobility Support in IPv6)
  • RFC 3776 (Using IPsec to Protect Mobile IPv6 Signaling between Mobile Nodes and Home Agents)


Availability in Native Languages

HP-UX Mobile IPv6 A.01.02 includes the following message catalogs for themip6admin and mip6config tools that can be localized into various languages:

  • /usr/lib/nls/C/mip6admin.cat
  • /usr/lib/nls/C/mip6config.cat

 

 
Additional product information
Product #: HPUXMOBILEIPV6
Version: A.01.02
Software specification: HP-UX 11i v3 B.11.31
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