diff --git a/boards/px4/fmu-v5x/init/rc.board_defaults b/boards/px4/fmu-v5x/init/rc.board_defaults
index 8338abfacb..a7d844a366 100644
--- a/boards/px4/fmu-v5x/init/rc.board_defaults
+++ b/boards/px4/fmu-v5x/init/rc.board_defaults
@@ -3,6 +3,15 @@
 # board specific defaults
 #------------------------------------------------------------------------------
 
+# Mavlink ethernet (CFG 1000)
+param set-default MAV_2_CONFIG 1000
+param set-default MAV_2_BROADCAST 1
+param set-default MAV_2_MODE 0
+param set-default MAV_2_RADIO_CTL 0
+param set-default MAV_2_RATE 100000
+param set-default MAV_2_REMOTE_PRT 14550
+param set-default MAV_2_UDP_PRT 14550
+
 param set-default SENS_EN_INA238 0
 param set-default SENS_EN_INA228 0
 param set-default SENS_EN_INA226 1