diff --git a/user_space/set_rx_target_sender_mac_addr.sh b/user_space/set_rx_target_sender_mac_addr.sh
new file mode 100755
index 0000000..8dab30d
--- /dev/null
+++ b/user_space/set_rx_target_sender_mac_addr.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+home_dir=$(pwd)
+
+if test -d "/sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr"; then
+  cd /sys/devices/platform/fpga-axi@0/fpga-axi@0:sdr
+else 
+  cd /sys/devices/soc0/fpga-axi\@0/fpga-axi\@0\:sdr
+fi
+
+set -x
+# set
+if [[ -n $1 ]]; then
+  echo $1 > rx_target_sender_mac_addr
+fi
+
+# show
+cat rx_target_sender_mac_addr
+set +x
+
+cd $home_dir
+