/rfc3315 - DHCPv6.txt/1.1/Sun Nov 28 11:14:07 2004//
/rfc3319 - SIP options.txt/1.1/Sun Nov 28 11:14:07 2004//
/rfc3633 - IPv6 prefix options.txt/1.1/Sat Jan  8 16:52:04 2005//
/rfc3646 - DNS options for DHCPv6.txt/1.1/Sun Nov 28 11:14:07 2004//
/rfc3736 - Stateless DHCPv6.txt/1.1/Sun Nov 28 11:14:07 2004//
/rfc3898 - NIS opts for DHCPv6.txt/1.1/Sun Nov 28 11:14:07 2004//
D
