Getting local host Ip Address

Question

public static string GetLocalIpAddress()
    {
        string hostName = Dns.GetHostName();
        IPHostEntry ip = Dns.GetHostEntry(hostName);
        string IpAddress = Convert.ToString(ip.AddressList[2]);
        return IpAddress.ToString();
    }

This will some times show Index out of bound exception what should be the problem in it.? thanks in advance

ip.AddressList[2].You need to check how many elements are in the list. — Jay, Apr 17 '14 at 09:08
Error occurs because the array index 2 > ip.AddressList.Length — kelsier, Apr 17 '14 at 09:09

score 7 · Answer 1 · answered Aug 27 '14 at 09:10

try this method, it works for me.

 public static string GetIPAddress()
    {
        IPHostEntry host;
        string localIP = "?";
        host = Dns.GetHostEntry(Dns.GetHostName());
        foreach (IPAddress ip in host.AddressList)
        {
            if (ip.AddressFamily == AddressFamily.InterNetwork)
            {
                localIP = ip.ToString();
            }
        }
        return localIP;
    }

Thanks,

score 1 · Answer 2 · answered Apr 17 '14 at 10:18

1

foreach (var addr in Dns.GetHostEntry(string.Empty).AddressList)
{
if (addr.AddressFamily == AddressFamily.InterNetwork)
Console.WriteLine("IPv4 Address: {0}", addr)
}

answered Apr 17 '14 at 10:18

Usman Tariq

43
9

score 0 · Answer 3 · edited May 23 '17 at 12:24

0

As they have answering before. You should check your lenght on the AddressList. Becouse it will not always be 2.

Here you have another answer on stackoverflow: Getting valid IP from IPHostEntry

edited May 23 '17 at 12:24

Community

1
1

answered Apr 17 '14 at 10:15

sn1ckers

103
7

Getting local host Ip Address

3 Answers3