+
+ DHCP6_OPTION_DNS_SERVERS = 23, /* RFC 3646 */
+ DHCP6_OPTION_DOMAIN_LIST = 24, /* RFC 3646 */
+
+ DHCP6_OPTION_SNTP_SERVERS = 31, /* RFC 4075 */
+
+ /* option code 35 is unassigned */
+
+ DHCP6_OPTION_NTP_SERVER = 56, /* RFC 5908 */
+
+ /* option codes 89-142 are unassigned */
+ /* option codes 144-65535 are unassigned */