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

booleanIsBusy(final InetAddress remote, int port)
Is Busy 
try {
    Socket s = new Socket(remote, port);
    s.close();
    return true;
} catch (Exception e) {
    return false;
booleanisClassicAddress(InetAddress address)
Returns true if the given InetAddress is an IPv4 address 
return address instanceof Inet4Address;
booleanisCommonSubnet(InetAddress address1, InetAddress address2)
Checks if two IP addresses belong to the same subnet 
byte[] address1data = address1.getAddress();
byte[] address2data = address2.getAddress();
return address1data[0] == address2data[0] && address1data[1] == address2data[1]
        && address1data[2] == address2data[2];
booleanisGlobalAddressV6(InetAddress addr)
checks if the provided address is a global-scope ipv6 unicast address 
return addr instanceof Inet6Address && !addr.isAnyLocalAddress() && !addr.isLinkLocalAddress()
        && !addr.isLoopbackAddress() && !addr.isMulticastAddress() && !addr.isSiteLocalAddress()
        && !((Inet6Address) addr).isIPv4CompatibleAddress();
booleanisHostLocalHost(InetAddress host)
is Host Local Host 
try {
    return getLocalAddress().equals(host);
} catch (UnknownHostException e) {
    return false;
booleanisInet6Compatible(InetAddress address, Inet6Address inet6Address)
is Inet Compatible 
if (!(address instanceof Inet6Address)) {
    return false;
if (!Arrays.equals(address.getAddress(), inet6Address.getAddress())) {
    return false;
return true;
booleanisInRage(InetAddress check, InetAddress bcast, int netmask)
is In Rage 
int byts = netmask / 8;
byte mask = (byte) ~(0xff >>> (netmask % 8));
byte[] b1 = check.getAddress();
byte[] b2 = bcast.getAddress();
int i;
for (i = 0; i < byts; i++) {
    if (b1[i] != b2[i]) {
        return false;
...
booleanisIpAddressInRange(InetAddress ipStart, InetAddress ipEnd, InetAddress ipToCheck)
is Ip Address In Range 
long ipLo = inetAddressToLong(ipStart);
long ipHi = inetAddressToLong(ipEnd);
long ipToTest = inetAddressToLong(ipToCheck);
return (ipToTest >= ipLo && ipToTest <= ipHi);
booleanisIPLocal(final InetAddress adr)
is IP Local 
return adr.isLinkLocalAddress() || adr.isLoopbackAddress() || adr.isSiteLocalAddress();
booleanisIPv6(final InetAddress ip)
True if this InetAddress is a raw IPv6 in dotted quad notation. 
return ip instanceof Inet6Address && ip.getHostName().equals(ip.getHostAddress());