Here you can find the source of isIPLocal(final InetAddress adr)
public static boolean isIPLocal(final InetAddress adr)
//package com.java2s; /******************************************************************************* * Copyright 2013-2014 alladin-IT GmbH/*from w w w . j a v a 2 s . c o m*/ * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. ******************************************************************************/ import java.net.InetAddress; public class Main { public static boolean isIPLocal(final InetAddress adr) { return adr.isLinkLocalAddress() || adr.isLoopbackAddress() || adr.isSiteLocalAddress(); } }