diff --git a/engine/src/networking/com/jme3/network/AbstractMessage.java b/engine/src/networking/com/jme3/network/AbstractMessage.java
new file mode 100644
index 000000000..3d2e4007b
--- /dev/null
+++ b/engine/src/networking/com/jme3/network/AbstractMessage.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2011 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.jme3.network;
+
+import com.jme3.network.serializing.Serializable;
+
+/**
+ *  Interface implemented by all network messages.
+ *
+ *  @version   $Revision$
+ *  @author    Paul Speed
+ */
+@Serializable()
+public abstract class AbstractMessage implements Message
+{
+    private transient boolean reliable = true;
+
+    protected AbstractMessage()
+    {
+    }
+
+    protected AbstractMessage( boolean reliable )
+    {
+        this.reliable = reliable; 
+    }
+    
+    /**
+     *  Sets this message to 'reliable' or not and returns this
+     *  message.
+     */
+    public Message setReliable(boolean f)
+    {
+        this.reliable = f;
+        return this;
+    }
+    
+    /**
+     *  Indicates which way an outgoing message should be sent
+     *  or which way an incoming message was sent.
+     */
+    public boolean isReliable()
+    {
+        return reliable;
+    }
+}