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

HP-UX IPSec Overview
Introduction
Chapter 128
• Internet Key Exchange (IKE) protocol, for generating and
distributing cryptography keys for ESP and AH. IKE also
authenticates the identity of the remote system, so AH and
authenticated ESP with IKE keys provides data origin
authentication.
• Manual Keys, an alternative to IKE. Instead of dynamically
generating and distributing cryptography keys for ESP and AH, the
cryptography keys are static and manually distributed. Manual keys
are typically used only when the remote system does not support
IKE, or in Mobile IPv6 topologies.