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IPsec connections over a loopback interface did not work properly when a specific port was configured. This was because incomplete IPsec policies were being set up, leading to connection failures. This update fixes this issue, and complete policies are now correctly established.

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2011-0961.html