Summary
The remote host is missing an update to the system as announced in the referenced advisory.
Solution
Update your system with the appropriate patches or software upgrades.
http://www.kame.net/racoon/racoon-ml/msg00517.html http://marc.theaimsgroup.com/?l=bugtraq&m=108726102304507 http://www.vuxml.org/freebsd/2328adef-157c-11d9-8402-000d93664d5c.html
Insight
The following package is affected: racoon