* RFC 3825: Dynamic Host Configuration Protocol Option for Coordinate-based Location Configuration Information
* RFC 3942: Reclassifying DHCPv4 Options
* RFC 4243: Vendor-Specific Information Suboption for the Dynamic Host Configuration Protocol (DHCP) Relay Agent Option
+ * RFC 4388: Dynamic Host Configuration Protocol (DHCP) Leasequery
* RFC 4776: Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information
* RFC 5223: Discovering Location-to-Service Translation (LoST) Servers Using the Dynamic Host Configuration Protocol (DHCP)
* RFC 5417: CAPWAP Access Controller DHCP Option
/* 88 */ { "BCMCS Controller Domain Name [TODO:RFC4280]", opaque, NULL },
/* 89 */ { "BCMCS Controller IPv4 address [TODO:RFC4280]", opaque, NULL },
/* 90 */ { "Authentication", special, NULL },
-/* 91 */ { "Client last transaction time [TODO:RFC4388]", opaque, NULL },
-/* 92 */ { "associated ip option [TODO:RFC4388]", opaque, NULL },
+/* 91 */ { "Client last transaction time", time_in_u_secs, NULL },
+/* 92 */ { "Associated IP option", ipv4_list, NULL },
/* 93 */ { "Client System Architecture", val_u_short, VALS(bootp_client_arch) },
/* 94 */ { "Client Network Device Interface", special, NULL },
/* 95 */ { "LDAP [TODO:RFC3679]", opaque, NULL },