diff --git a/src/esp32_platform.cpp b/src/esp32_platform.cpp
index b0d5b03..845ad11 100644
--- a/src/esp32_platform.cpp
+++ b/src/esp32_platform.cpp
@@ -7,7 +7,16 @@
 #include "knx/bits.h"
 
 #ifndef KNX_SERIAL
-#define KNX_SERIAL Serial1
+    #define KNX_SERIAL Serial1
+    #pragma warn "KNX_SERIAL not defined, using Serial1"
+#endif
+
+#ifdef KNX_IP_LAN
+    #include "Eth.h"
+    #define KNX_NETIF ETH
+#else // KNX_IP_WIFI
+    #include <WiFi.h>
+    #define KNX_NETIF WiFi
 #endif
 
 Esp32Platform::Esp32Platform()
@@ -43,17 +52,17 @@ void Esp32Platform::setupUart()
 
 uint32_t Esp32Platform::currentIpAddress()
 {
-    return WiFi.localIP();
+    return KNX_NETIF.localIP();
 }
 
 uint32_t Esp32Platform::currentSubnetMask()
 {
-    return WiFi.subnetMask();
+    return KNX_NETIF.subnetMask();
 }
 
 uint32_t Esp32Platform::currentDefaultGateway()
 {
-    return WiFi.gatewayIP();
+    return KNX_NETIF.gatewayIP();
 }
 
 void Esp32Platform::macAddress(uint8_t * addr)
@@ -80,7 +89,7 @@ void Esp32Platform::setupMultiCast(uint32_t addr, uint16_t port)
     IPAddress mcastaddr(htonl(addr));
     
     KNX_DEBUG_SERIAL.printf("setup multicast addr: %s port: %d ip: %s\n", mcastaddr.toString().c_str(), port,
-        WiFi.localIP().toString().c_str());
+        KNX_NETIF.localIP().toString().c_str());
     uint8_t result = _udp.beginMulticast(mcastaddr, port);
     KNX_DEBUG_SERIAL.printf("result %d\n", result);
 }
diff --git a/src/esp32_platform.h b/src/esp32_platform.h
index 4318fa4..ffd4e30 100644
--- a/src/esp32_platform.h
+++ b/src/esp32_platform.h
@@ -1,9 +1,10 @@
 #ifdef ARDUINO_ARCH_ESP32
 #include "arduino_platform.h"
-#include <WiFi.h>
-#include <WiFiUdp.h>
 
 
+
+#include <WiFiUdp.h>
+
 class Esp32Platform : public ArduinoPlatform
 {
 public: