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One of the many namespaces in the Base Class Framework is the System.Net namespace. It provides a simple programming interface to many of the protocols found on the network today. One of the classes of the namespace is DNS, which provides simple domain name resolution functionality.
The following example demonstrates the use of System.NET.DNS namespace to get the computer Name and its IP address:
Option Strict Off Imports system Imports System.Net.DNS Public Class GetIP Shared Function GetIPAddress() As String Dim oAddr As System.Net.IPAddress Dim sAddr As String With system.Net.DNS.GetHostByName(system.Net.DNS.GetHostName()) oAddr = New System.Net.IPAddress(.AddressList(0).Address) sAddr = oAddr.ToString End With GetIPAddress = sAddr End Function Shared Sub main() Dim shostname As String shostname = system.Net.DNS.GetHostName console.writeline("Your Machine Name = " & shostname) 'Call Get IPAddress console.writeline("Your IP = " & GetIPAddress) End Sub End Class
Compile the file as: vbc getip.vb /r:system.net.dll. Execute the getip.exe and the computer's name and IP will be printed on the console.