dhcpv6_for_each_option(start, end, otype, olen, odata) {
bool is_pd = (otype == DHCPV6_OPT_IA_PD);
bool is_na = (otype == DHCPV6_OPT_IA_NA);
dhcpv6_for_each_option(start, end, otype, olen, odata) {
bool is_pd = (otype == DHCPV6_OPT_IA_PD);
bool is_na = (otype == DHCPV6_OPT_IA_NA);