How to get the IP address of the server on which my C# application is running on?

Question

I am running a server, and I want to display my own IP address.

What is the syntax for getting the computer\'s own (if possible, external) IP address?

Someon

Answer 1

If you are running in intranet you'll be able to get local machine IP address and if not you'll get external ip address with this: Web:

//this will bring the IP for the current machine on browser
System.Web.HttpContext.Current.Request.UserHostAddress

Desktop:

//This one will bring all local IPs for the desired namespace
IPAddress[] localIPs = Dns.GetHostAddresses(Dns.GetHostName());

Answer 2

And this is to get all local IPs in csv format in VB.NET

Imports System.Net
Imports System.Net.Sockets

Function GetIPAddress() As String
    Dim ipList As List(Of String) = New List(Of String)
    Dim host As IPHostEntry
    Dim localIP As String = "?"
    host = Dns.GetHostEntry(Dns.GetHostName())
    For Each ip As IPAddress In host.AddressList
        If ip.AddressFamily = AddressFamily.InterNetwork Then
            localIP = ip.ToString()
            ipList.Add(localIP)
        End If
    Next
    Dim ret As String = String.Join(",", ipList.ToArray)
    Return ret
End Function