How to get ethernet IP address

Question

4.00/5 (1 vote)

See more:

I've tired to get exact ethernet ip address.

Java

InetAddress ip=InetAddress.getLocalHost();
String iaddr = ip.getHostAddress();

It return localhost address only. I need ethernet address only..

pls help me..

Posted 3-Oct-12 19:48pm

hari301

Updated 3-Oct-12 19:51pm

TorstenH.

v2

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

TorstenH. · Answer 1 · 2012-10-03T19:55:00

You are pretty close - just a bit more coding to make it visible:
Try this:

Java

public static void main(String[] args) {
		
		try {
		    InetAddress addr = InetAddress.getLocalHost();

		    // Get IP Address
		    byte[] ipAddr = addr.getAddress();

		    // Get hostname
		    String hostname = addr.getHostName();
		    System.out.println("hostname " + hostname);
		    System.out.println("IP Address " + convertIP(ipAddr));
		} catch (java.net.UnknownHostException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	// Convert to dot representation
	private static String convertIP(byte[] ipAddr){
	    String ipAddrStr = "";
	    for (int i=0; i<ipAddr.length; i++) {
	        if (i > 0) {
	            ipAddrStr += ".";
	        }
	        ipAddrStr += ipAddr[i]&0xFF;
	    }
	    return ipAddrStr;
	}

hari301 · Answer 2 · 2012-10-16T22:24:00

Quote:
The following code working on Linux(ubuntu).. If u have to use on windows, just change the "ppp0" to "ppp2". surely it will return the internet IP Address.

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.SocketException;
import java.util.Enumeration;
import javax.swing.JOptionPane;

public class ShowIp {

    public static void main(String[] args) throws SocketException {
        NetworkInterface ni = NetworkInterface.getByName("ppp0");
        Enumeration<InetAddress> inetAddresses = ni.getInetAddresses();


        while (inetAddresses.hasMoreElements()) {
            InetAddress ia = inetAddresses.nextElement();
            if (!ia.isLinkLocalAddress()) {
                JOptionPane.showMessageDialog(null, ia.getHostAddress());
            }
        }
    }
}

How to get ethernet IP address

2 solutions

Solution 1

Solution 3

Add your solution here

Preview 0