diff --git a/TestON/tests/SDNIPfunction/Dependency/CASE4-ping-as2host.sh b/TestON/tests/SDNIPfunction/Dependency/CASE4-ping-as2host.sh
new file mode 100755
index 0000000..f7fe154
--- /dev/null
+++ b/TestON/tests/SDNIPfunction/Dependency/CASE4-ping-as2host.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+
+
+#all the address in this for loop should work
+
+# ping test between as2 and as3
+for ((i=0;i<10;i++)); do
+
+        #echo '------from 3.0.0.x to 4.0.1.'$j'------'
+
+	for ((j=0; j<10; ++j )) ; do
+		echo '3.0.'$i'.1 -> 4.0.'$j'.1'
+    		ping -c 1 -w 1 -I 3.0.$i.1 4.0.$j.1 | grep 'from 4.0.'$j'.1'
+
+	done
+
+done
+for ((i=0;i<10;i++)); do
+
+        #echo '------from 3.0.0.x to 5.0.1.'$j'------'
+
+        for ((j=0; j<10; ++j )) ; do
+                echo '3.0.'$i'.1 -> 5.0.'$j'.1'
+                ping -c 1 -w 1 -I 3.0.$i.1 5.0.$j.1 | grep 'from 5.0.'$j'.1'
+
+        done
+
+done
+
+# ping test between as2 and as4
+for ((i=1;i<2;i++)); do
+       for ((prefix=101; prefix<=200; ++prefix)) ; do
+               for ((j=0; j<10; ++j )) ; do
+                       echo '3.0.0.'$i' - > '$prefix'.0.'$j'.1'
+                       ping -c 1 -w 1 -I 3.0.0.$i $prefix.0.$j.1 | grep 'from '$prefix'.0.'$j'.1'
+
+                done
+        done
+
+done
+