diff --git a/src/include/lwip/opt.h b/src/include/lwip/opt.h index a295e4c5..39d79059 100644 --- a/src/include/lwip/opt.h +++ b/src/include/lwip/opt.h @@ -453,7 +453,7 @@ * DHCP_DOES_ARP_CHECK==1: Do an ARP check on the offered address. */ #ifndef DHCP_DOES_ARP_CHECK -#define DHCP_DOES_ARP_CHECK 1 +#define DHCP_DOES_ARP_CHECK ((LWIP_DHCP) && (LWIP_ARP)) #endif /*