diff --git a/include/metalsvm/config.h.example b/include/metalsvm/config.h.example
index e3c16477..783461f1 100644
--- a/include/metalsvm/config.h.example
+++ b/include/metalsvm/config.h.example
@@ -33,12 +33,16 @@ extern "C" {
 #define TIMER_FREQ		100	/* in HZ */
 #define CLOCK_TICK_RATE		1193182	/* 8254 chip's internal oscillator frequency */
 
+#define BYTE_ORDER LITTLE_ENDIAN
+
 /* 
  * address space / (page_size * sizeof(uint8_t)) 
  * x86_32 => 4 GB / (4096 * 8) 
  */
 #define BITMAP_SIZE 		1048576
 
+#define USE_LWIP
+//#undef USE_LWIP
 #define USE_VGA
 //#undef USE_VGA
 #define USE_KEYBOARD
@@ -51,6 +55,9 @@ extern "C" {
 #define NORETURN 		__attribute__((noreturn))
 #define STDCALL 		__attribute__((stdcall))
 
+#define ULONG_MAX       0xffffffff 
+#define USHRT_MAX       0xffff
+
 typedef unsigned long long uint64_t;
 typedef long long int64_t;
 typedef unsigned int uint32_t;