diff --git a/scripts/knocking_setup.sh b/scripts/knocking_setup.sh
index 89f7af8..d50b277 100755
--- a/scripts/knocking_setup.sh
+++ b/scripts/knocking_setup.sh
@@ -2,7 +2,7 @@
 
 [[ -n $KNOCKING_STATUS ]] && 
     INTERFACE=$(ip -br a | grep -E "172.28" | awk '{print $1}') || \
-    INTERFACE=$(ip -br a | grep -E "^eth" | awk '{print $1}')
+    exit 0
 
 echo -E "
 [options]