diff --git a/.project b/.project
index bd3253e..45104c0 100644
--- a/.project
+++ b/.project
@@ -1478,6 +1478,11 @@
 			<type>1</type>
 			<location>C:/Users/bogd/esp-idf-v4.4.1/components/esp_netif/lwip/esp_netif_lwip_defaults.c</location>
 		</link>
+		<link>
+			<name>esp_idf_components/esp_netif/lwip/esp_netif_lwip_ppp.c</name>
+			<type>1</type>
+			<location>C:/Users/bogd/esp-idf-v4.4.1/components/esp_netif/lwip/esp_netif_lwip_ppp.c</location>
+		</link>
 		<link>
 			<name>esp_idf_components/esp_netif/lwip/esp_netif_sta_list.c</name>
 			<type>1</type>
@@ -8458,6 +8463,31 @@
 			<type>1</type>
 			<location>C:/Users/bogd/esp-idf-v4.4.1/components/libsodium/libsodium/src/libsodium/crypto_verify/sodium/verify.c</location>
 		</link>
+		<link>
+			<name>esp_idf_components/lwip/lwip/src/netif/ppp/polarssl/arc4.c</name>
+			<type>1</type>
+			<location>C:/Users/bogd/esp-idf-v4.4.1/components/lwip/lwip/src/netif/ppp/polarssl/arc4.c</location>
+		</link>
+		<link>
+			<name>esp_idf_components/lwip/lwip/src/netif/ppp/polarssl/des.c</name>
+			<type>1</type>
+			<location>C:/Users/bogd/esp-idf-v4.4.1/components/lwip/lwip/src/netif/ppp/polarssl/des.c</location>
+		</link>
+		<link>
+			<name>esp_idf_components/lwip/lwip/src/netif/ppp/polarssl/md4.c</name>
+			<type>1</type>
+			<location>C:/Users/bogd/esp-idf-v4.4.1/components/lwip/lwip/src/netif/ppp/polarssl/md4.c</location>
+		</link>
+		<link>
+			<name>esp_idf_components/lwip/lwip/src/netif/ppp/polarssl/md5.c</name>
+			<type>1</type>
+			<location>C:/Users/bogd/esp-idf-v4.4.1/components/lwip/lwip/src/netif/ppp/polarssl/md5.c</location>
+		</link>
+		<link>
+			<name>esp_idf_components/lwip/lwip/src/netif/ppp/polarssl/sha1.c</name>
+			<type>1</type>
+			<location>C:/Users/bogd/esp-idf-v4.4.1/components/lwip/lwip/src/netif/ppp/polarssl/sha1.c</location>
+		</link>
 		<link>
 			<name>components/libespfs/esp_idf_components/libsodium/libsodium/src/libsodium/crypto_auth/crypto_auth.c</name>
 			<type>1</type>
diff --git a/main/main.c b/main/main.c
index 87e8826..4e26479 100644
--- a/main/main.c
+++ b/main/main.c
@@ -37,7 +37,19 @@ void app_main(void)
     //init rom file system
      init_rom_fs("/espfs");
 
-#ifdef CONFIG_WEBGUIAPP_WIFI_ENABLE
+#if CONFIG_WEBGUIAPP_GPRS_ENABLE
+    /*Start PPP modem*/
+    if (GetSysConf()->gsmSettings.Flags1.bIsGSMEnabled)
+        PPPModemStart();
+#endif
+
+#if CONFIG_WEBGUIAPP_ETHERNET_ENABLE
+    /*Start Ethernet connection*/
+    if (GetSysConf()->ethSettings.Flags1.bIsETHEnabled)
+        EthStart();
+#endif
+
+#if CONFIG_WEBGUIAPP_WIFI_ENABLE
      /*Start WiFi connection*/
      if (GetSysConf()->wifiSettings.Flags1.bIsWiFiEnabled)
      {
diff --git a/sdkconfig b/sdkconfig
index ecbcf98..2201b58 100644
--- a/sdkconfig
+++ b/sdkconfig
@@ -171,26 +171,13 @@ CONFIG_APPTRACE_DEST_NONE=y
 CONFIG_APPTRACE_LOCK_ENABLE=y
 # end of Application Level Tracing
 
-#
-# ESP-ASIO
-#
-# CONFIG_ASIO_SSL_SUPPORT is not set
-# end of ESP-ASIO
-
 #
 # Bluetooth
 #
 # CONFIG_BT_ENABLED is not set
 # end of Bluetooth
 
-#
-# CoAP Configuration
-#
-CONFIG_COAP_MBEDTLS_PSK=y
-# CONFIG_COAP_MBEDTLS_PKI is not set
-# CONFIG_COAP_MBEDTLS_DEBUG is not set
 CONFIG_COAP_LOG_DEFAULT_LEVEL=0
-# end of CoAP Configuration
 
 #
 # Driver configurations
@@ -755,9 +742,7 @@ CONFIG_LWIP_SO_REUSE_RXTOALL=y
 # CONFIG_LWIP_SO_RCVBUF is not set
 # CONFIG_LWIP_NETBUF_RECVINFO is not set
 CONFIG_LWIP_IP4_FRAG=y
-CONFIG_LWIP_IP6_FRAG=y
 # CONFIG_LWIP_IP4_REASSEMBLY is not set
-# CONFIG_LWIP_IP6_REASSEMBLY is not set
 # CONFIG_LWIP_IP_FORWARD is not set
 # CONFIG_LWIP_STATS is not set
 # CONFIG_LWIP_ETHARP_TRUST_IP_MAC is not set
@@ -779,10 +764,7 @@ CONFIG_LWIP_DHCPS_MAX_STATION_NUM=8
 # end of DHCP server
 
 # CONFIG_LWIP_AUTOIP is not set
-CONFIG_LWIP_IPV6=y
-# CONFIG_LWIP_IPV6_AUTOCONFIG is not set
-CONFIG_LWIP_IPV6_NUM_ADDRESSES=3
-# CONFIG_LWIP_IPV6_FORWARD is not set
+# CONFIG_LWIP_IPV6 is not set
 # CONFIG_LWIP_NETIF_STATUS_CALLBACK is not set
 CONFIG_LWIP_NETIF_LOOPBACK=y
 CONFIG_LWIP_LOOPBACK_MAX_PBUFS=8
@@ -830,9 +812,14 @@ CONFIG_LWIP_TCPIP_TASK_AFFINITY_NO_AFFINITY=y
 # CONFIG_LWIP_TCPIP_TASK_AFFINITY_CPU0 is not set
 # CONFIG_LWIP_TCPIP_TASK_AFFINITY_CPU1 is not set
 CONFIG_LWIP_TCPIP_TASK_AFFINITY=0x7FFFFFFF
-# CONFIG_LWIP_PPP_SUPPORT is not set
-CONFIG_LWIP_IPV6_MEMP_NUM_ND6_QUEUE=3
-CONFIG_LWIP_IPV6_ND6_NUM_NEIGHBORS=5
+CONFIG_LWIP_PPP_SUPPORT=y
+# CONFIG_LWIP_PPP_NOTIFY_PHASE_SUPPORT is not set
+# CONFIG_LWIP_PPP_PAP_SUPPORT is not set
+CONFIG_LWIP_PPP_CHAP_SUPPORT=y
+# CONFIG_LWIP_PPP_MSCHAP_SUPPORT is not set
+# CONFIG_LWIP_PPP_MPPE_SUPPORT is not set
+# CONFIG_LWIP_ENABLE_LCP_ECHO is not set
+# CONFIG_LWIP_PPP_DEBUG_ON is not set
 # CONFIG_LWIP_SLIP_SUPPORT is not set
 
 #
@@ -865,12 +852,6 @@ CONFIG_LWIP_ESP_LWIP_ASSERT=y
 # CONFIG_LWIP_HOOK_TCP_ISN_NONE is not set
 CONFIG_LWIP_HOOK_TCP_ISN_DEFAULT=y
 # CONFIG_LWIP_HOOK_TCP_ISN_CUSTOM is not set
-CONFIG_LWIP_HOOK_IP6_ROUTE_NONE=y
-# CONFIG_LWIP_HOOK_IP6_ROUTE_DEFAULT is not set
-# CONFIG_LWIP_HOOK_IP6_ROUTE_CUSTOM is not set
-CONFIG_LWIP_HOOK_ND6_GET_GW_NONE=y
-# CONFIG_LWIP_HOOK_ND6_GET_GW_DEFAULT is not set
-# CONFIG_LWIP_HOOK_ND6_GET_GW_CUSTOM is not set
 CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_NONE=y
 # CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_DEFAULT is not set
 # CONFIG_LWIP_HOOK_NETCONN_EXT_RESOLVE_CUSTOM is not set
@@ -1482,7 +1463,13 @@ CONFIG_TCPIP_TASK_AFFINITY_NO_AFFINITY=y
 # CONFIG_TCPIP_TASK_AFFINITY_CPU0 is not set
 # CONFIG_TCPIP_TASK_AFFINITY_CPU1 is not set
 CONFIG_TCPIP_TASK_AFFINITY=0x7FFFFFFF
-# CONFIG_PPP_SUPPORT is not set
+CONFIG_PPP_SUPPORT=y
+# CONFIG_PPP_NOTIFY_PHASE_SUPPORT is not set
+# CONFIG_PPP_PAP_SUPPORT is not set
+CONFIG_PPP_CHAP_SUPPORT=y
+# CONFIG_PPP_MSCHAP_SUPPORT is not set
+# CONFIG_PPP_MPPE_SUPPORT is not set
+# CONFIG_PPP_DEBUG_ON is not set
 CONFIG_ESP32_PTHREAD_TASK_PRIO_DEFAULT=5
 CONFIG_ESP32_PTHREAD_TASK_STACK_SIZE_DEFAULT=3072
 CONFIG_ESP32_PTHREAD_STACK_MIN=768
diff --git a/sdkconfig.old b/sdkconfig.old
index 308465f..ecbcf98 100644
--- a/sdkconfig.old
+++ b/sdkconfig.old
@@ -355,7 +355,7 @@ CONFIG_ETH_DMA_RX_BUFFER_NUM=10
 CONFIG_ETH_DMA_TX_BUFFER_NUM=10
 CONFIG_ETH_USE_SPI_ETHERNET=y
 # CONFIG_ETH_SPI_ETHERNET_DM9051 is not set
-# CONFIG_ETH_SPI_ETHERNET_W5500 is not set
+CONFIG_ETH_SPI_ETHERNET_W5500=y
 # CONFIG_ETH_SPI_ETHERNET_KSZ8851SNL is not set
 # CONFIG_ETH_USE_OPENETH is not set
 # end of Ethernet
@@ -1270,7 +1270,21 @@ CONFIG_WEBGUIAPP_WIFI_GATEWAY_STA="192.168.1.150"
 #
 # Ethernet settings
 #
-# CONFIG_WEBGUIAPP_ETHERNET_ENABLE is not set
+CONFIG_WEBGUIAPP_ETHERNET_ENABLE=y
+CONFIG_WEBGUIAPP_ETHERNET_ON=y
+CONFIG_GPIO_RANGE_MIN=0
+CONFIG_GPIO_RANGE_MAX=36
+# CONFIG_USE_INTERNAL_ETHERNET is not set
+CONFIG_USE_SPI_ETHERNET=y
+CONFIG_SPI_ETHERNETS_NUM=1
+# CONFIG_DM9051 is not set
+# CONFIG_KSZ8851SNL is not set
+CONFIG_W5500=y
+CONFIG_ETH_SPI_CLOCK_MHZ=12
+CONFIG_ETH_SPI_CS0_GPIO=15
+CONFIG_ETH_SPI_INT0_GPIO=4
+CONFIG_ETH_SPI_PHY_RST0_GPIO=-1
+CONFIG_ETH_SPI_PHY_ADDR0=1
 # end of Ethernet settings
 
 #