From b44d46cf625efb50badd7af0b30f29025f48ec59 Mon Sep 17 00:00:00 2001
From: "M.Scholz" <m.scholz88@onlinehome.de>
Date: Tue, 20 Nov 2012 15:46:17 +0100
Subject: [PATCH] optional IPv4

---
 ws2012/P2P/uebungen/4/src/peer/Node.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ws2012/P2P/uebungen/4/src/peer/Node.java b/ws2012/P2P/uebungen/4/src/peer/Node.java
index aa19464f..12378a3d 100644
--- a/ws2012/P2P/uebungen/4/src/peer/Node.java
+++ b/ws2012/P2P/uebungen/4/src/peer/Node.java
@@ -30,6 +30,7 @@ public class Node {
 	private UDPListen udpListen;
 
 	public Node() {
+		//System.setProperty("java.net.preferIPv4Stack" , "true"); // optional IPv4 (mac, windows)
 		try {
 			channel = DatagramChannel.open();
 			channel.socket().bind(null);