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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.
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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.