dhcpv4_put(&reply, &cookie, DHCPV4_OPT_DNSSERVER,
4 * iface->dhcpv4_dns_cnt, iface->dhcpv4_dns);
- if (a->reqopts && iface->dhcpv4_ntp_cnt != 0) {
+ if (a && a->reqopts && iface->dhcpv4_ntp_cnt != 0) {
for(size_t opts = 0; a->reqopts[opts]; opts++) {
if (a->reqopts[opts] == DHCPV4_OPT_NTPSERVER) {
dhcpv4_put(&reply, &cookie, DHCPV4_OPT_NTPSERVER,