rfc8020.txt:Shumon Huque:verisign:usa:10:nov:2016:UNKNOWN:kwd,seccons:draft-ietf-dnsop-nxdomain-cut:2009-11-06:2009-07-01:50:0:56:19:125:1:2006-02-28:264:draft-schmitt-hip-nat-traversal:2006-11-22:954:2010-05-06:185