K 10 svn:author V 3 dru K 8 svn:date V 27 2014-04-22T19:43:18.685544Z K 7 svn:log V 247 Prep work for IPsec chapter. Add additional definitions to intro. Still need to define SA and SAD. Still need to setup test environment to verify tech setup. This section does not yet mention setkey. More commits to come. Sponsored by: iXsystems END