UPDATE 2.2

src/org/kne/cloud/network/nathole/ICMPNatholeTest.java

@@ -0,0 +1,27 @@
+package org.kne.cloud.network.nathole;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.util.Arrays;
+
+public class ICMPNatholeTest {
+	public static void main(String[] args) throws IllegalStateException, IOException {
+		
+	}
+	 public static String toString(byte[] a) {
+	        if (a == null)
+	            return "null";
+	        int iMax = a.length - 1;
+	        if (iMax == -1)
+	            return "[]";
+
+	        StringBuilder b = new StringBuilder();
+	        b.append('[');
+	        for (int i = 0; ; i++) {
+	            b.append( Integer.toString(a[i]&0xff,16));
+	            if (i == iMax)
+	                return b.append(']').toString();
+	            b.append(", ");
+	        }
+	    }
+}