#define LWIP_NUM_SYS_TIMEOUT_INTERNAL (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (ESP_LWIP_DHCP_FINE_TIMERS_ONDEMAND ? LWIP_DHCP : 2*LWIP_DHCP) + (DHCP_DOES_ARP_CHECK ? 0 : LWIP_ACD) + (ESP_LWIP_IGMP_TIMERS_ONDEMAND ? 0 : LWIP_IGMP) + (ESP_LWIP_DNS_TIMERS_ONDEMAND ? 0 : LWIP_DNS) + PPP_NUM_TIMEOUTS + (LWIP_IPV6 * (1 + LWIP_IPV6_REASS + (ESP_LWIP_MLD6_TIMERS_ONDEMAND ? 0 : LWIP_IPV6_MLD) + LWIP_IPV6_DHCP6)))