rfc5780.txt:Derek C. MacDonald:skype:usa:26:may:2010:UNKNOWN:format,kwd,seccons,ianacons:draft-ietf-behave-nat-behavior-discovery:2009-12-07:2008-08-29:40:0:370:53:463:4:2006-10-17:134:draft-macdonald-behave-nat-behavior-discovery:2007-02-26:548:2010-05-19:167