InetAddress.getLocalHost() issue...

[shahdharmit]

Hello,

I am using Netbeans 6.7.1 on Fedora 11(Linux). The issue is that when I use InetAddress.getLocalHost() method, I get only the loopback interface IP. In Windows 7, I did same and got the IP that I was having. Right now in spite of being connected to the net and havinga live IP, I can't get that IP using the above mentioned method. Am I doing something wrong?

Thanks.

[neilcoffey]

There have been some reported issues with InetAddress.getLocalHost() in the past. If it's causing you trouble, you could try explicitly enumerating the interfaces:

      Enumeration<NetworkInterface> infs = NetworkInterface.getNetworkInterfaces();
      while (infs.hasMoreElements()) {
        NetworkInterface inf = infs.nextElement();
        System.out.println("Name : " + inf.getName());
        Enumeration<InetAddress> addrs = inf.getInetAddresses();
        while (addrs.hasMoreElements()) {
          System.out.println("  " + addrs.nextElement().getHostAddress());
        }
      }

N.B. Neither InetAddress.getLocalHost() or NetworkInterface will provide the local IP if the security policy you're running with doesn't allow it. This usually applies to Applets.