typedef struct NX_DHCPV6_IA_ADDRESS_STRUCT
{
USHORT nx_op_code;
USHORT nx_option_length;
NXD_ADDRESS nx_global_address;
ULONG nx_preferred_lifetime;
ULONG nx_valid_lifetime;
UINT nx_address_status;
UINT nx_address_map;
} NX_DHCPV6_IA_ADDRESS;