diff --git a/package/harvester-os/files/usr/sbin/harv-dummy-iface b/package/harvester-os/files/usr/sbin/harv-dummy-iface
index ac72de2c7..e77a17899 100755
--- a/package/harvester-os/files/usr/sbin/harv-dummy-iface
+++ b/package/harvester-os/files/usr/sbin/harv-dummy-iface
@@ -1,6 +1,10 @@
 #!/bin/bash -ex
 
+if ip route show | grep -q '^default'; then
+    exit 0
+fi
+
 ip link add type dummy
 ip addr add 192.168.1.100/255.255.255.0 dev dummy0
 ip link set dummy0 up
-ip route add default via 192.168.1.100
\ No newline at end of file
+ip route add default via 192.168.1.100