A new ipa-client package is now available for Red Hat Enterprise Linux 5.
IPA (Identity, Policy, Audit) is an integrated solution to provide centrally managed identity, that is, machine, user, virtual machines, groups, and authentication credentials.
The ipa-client package provides a tool to enroll a machine to an IPA server version 2, and is not backward compatible with version 1 of the server. (BZ#607772
All users requiring ipa-client should install this newly released package, which adds this enhancement.