In order for s4u2proxy to work a KDC that supports it with the required patches is needed.
The version needs to be >= krb5-server-1.9.2-3
There are also some patches for bug https://bugzilla.redhat.com/show_bug.cgi?id=761317 that need to be added.
The correct minimum version is 1.9.2-6.
Moving to next month iteration.
krb5-server >= 1.9.2-6
master: 2da6d6e
ipa-2-2: abd3ae2
Metadata Update from @rcritten: - Issue assigned to rcritten - Issue set to the milestone: FreeIPA 2.2 Core Effort - 2012/02
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