diff --git a/ports/stm32/boards/NUCLEO_N657X0/mpconfigboard.h b/ports/stm32/boards/NUCLEO_N657X0/mpconfigboard.h
index ccc3fa051f..90ea1eae3a 100644
--- a/ports/stm32/boards/NUCLEO_N657X0/mpconfigboard.h
+++ b/ports/stm32/boards/NUCLEO_N657X0/mpconfigboard.h
@@ -74,6 +74,17 @@
 #define MICROPY_HW_USB_HS_IN_FS                 (1)
 #define MICROPY_HW_USB_MAIN_DEV                 (USB_PHY_HS_ID)
 
+// Ethernet via RMII
+#define MICROPY_HW_ETH_MDC                      (pin_G11)
+#define MICROPY_HW_ETH_MDIO                     (pin_F4)
+#define MICROPY_HW_ETH_RMII_REF_CLK             (pin_F7)
+#define MICROPY_HW_ETH_RMII_CRS_DV              (pin_F10)
+#define MICROPY_HW_ETH_RMII_RXD0                (pin_F14)
+#define MICROPY_HW_ETH_RMII_RXD1                (pin_F15)
+#define MICROPY_HW_ETH_RMII_TX_EN               (pin_F11)
+#define MICROPY_HW_ETH_RMII_TXD0                (pin_F12)
+#define MICROPY_HW_ETH_RMII_TXD1                (pin_F13)
+
 /******************************************************************************/
 // Bootloader configuration
 
diff --git a/ports/stm32/boards/NUCLEO_N657X0/mpconfigboard.mk b/ports/stm32/boards/NUCLEO_N657X0/mpconfigboard.mk
index fa64cb1706..777f22e61e 100644
--- a/ports/stm32/boards/NUCLEO_N657X0/mpconfigboard.mk
+++ b/ports/stm32/boards/NUCLEO_N657X0/mpconfigboard.mk
@@ -24,3 +24,6 @@ endif
 
 # MicroPython settings
 MICROPY_FLOAT_IMPL = double
+MICROPY_PY_LWIP = 1
+MICROPY_PY_SSL = 1
+MICROPY_SSL_MBEDTLS = 1
diff --git a/ports/stm32/boards/NUCLEO_N657X0/pins.csv b/ports/stm32/boards/NUCLEO_N657X0/pins.csv
index 033f0a552e..a8a3f6c5ab 100644
--- a/ports/stm32/boards/NUCLEO_N657X0/pins.csv
+++ b/ports/stm32/boards/NUCLEO_N657X0/pins.csv
@@ -44,6 +44,17 @@ A5,PG15
 -SPI5_MISO,PG1
 -SPI5_MOSI,PG2
 
+# ETH1 RMII
+,PG11
+,PF4
+,PF7
+,PF10
+,PF11
+,PF12
+,PF13
+,PF14
+,PF15
+
 -BUTTON,PC13
 LED_BLUE,PG8
 LED_RED,PG10