Java Utililty Methods InetAddress Check

List of utility methods to do InetAddress Check

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Description

The list of methods to do InetAddress Check are organized into topic(s).

Method

booleanisPubliclyRoutable(final InetAddress addrIP)
Determines whether a particular IP address is publicly routable on the internet 
if (addrIP == null)
    throw new NullPointerException("isPubliclyRoutable requires an IP address be passed to it!");
return !addrIP.isSiteLocalAddress() && !addrIP.isLinkLocalAddress() && !addrIP.isLoopbackAddress();
booleanisReachable(final InetAddress inetAddress, final int timeout)
is Reachable 
return inetAddress.isReachable(timeout);
booleanisReachable(InetAddress address, int port)
is Reachable 
return isReachable(address, Arrays.asList(port));
booleanisReachable(NetworkInterface iface, InetAddress address, int timeout)
is Reachable 
try {
    return address.isReachable(iface, 0, timeout);
} catch (IOException e) {
    return false;
booleanisReservedAddr(InetAddress inetAddr)
Check if it's "local address" or "link local address" or "loopbackaddress" 
if (inetAddr.isAnyLocalAddress() || inetAddr.isLinkLocalAddress() || inetAddr.isLoopbackAddress()) {
    return true;
return false;
booleanisServerAlive(InetAddress host, int port)
Check whether a server is alive. 
Socket socket = null;
int i = 0;
while (i < RETRY_COUNT) {
    try {
        socket = new Socket(host, port);
        break;
    } catch (IOException e) {
        i++;
...
booleanisServerAlive(InetAddress host, int port)
Check whether a server is alive. 
Socket socket = null;
int i = 0;
while (i < RETRY_COUNT) {
    try {
        socket = new Socket(host, port);
        break;
    } catch (IOException e) {
        i++;
...
booleanisSiteLocalAddress(InetAddress i)
Check if address is in site-local range. 
if (i instanceof Inet6Address) {
    byte[] addr = i.getAddress();
    assert (addr.length == 128 / 8);
    return ((addr[0] & (byte) 0xfe) == (byte) 0xfc
    ) || (addr[0] == (byte) 0xfe && (addr[1] & (byte) 0xc0) == (byte) 0xc0
    );
return i.isSiteLocalAddress();
...
booleanisTenDot(InetAddress adr)
is Ten Dot 
return getOneDotPrefix(adr).equals("10");
booleanisThisMyIpAddress(InetAddress addr)
Check if the given address is pointing to this local machine. 
if (addr.isAnyLocalAddress() || addr.isLoopbackAddress()) {
    return true;
try {
    return NetworkInterface.getByInetAddress(addr) != null;
} catch (SocketException ex) {
    return false;