Mobile IPv6 A.01.00 Release Notes

HP-UX Mobile IPv6 A.01.00 Release Notes
What’s Included in HP-UX Mobile IPv6 A.01.00
Chapter 7
Return Routability Procedure
When Mobile Nodes receive data-packets from Correspondent Nodes routed through the
Home Agent, it indicates the Correspondent Node does not have binding information with the
Mobile Node’s current Care-of Address. In this case, the Mobile Node can use the Return
Routability Procedure to establish Route Optimization and verify the Correspondent Node
can contact the Mobile Node using both its Home Address and Care-of Address.
During the Return Routability Procedure the Mobile Node sends a Binding Update message
to the Correspondent Node with its current Care-of Address. To prevent attackers from
sending false Binding Update messages, the Binding Update is authenticated using a
cryptographic signature.
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.
Multi-Processor Scaling
HP 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.