Public Sub GetIpAddressList(hostString As [String])
    Try
        ' Get 'IPHostEntry' object which contains information like host name, IP addresses, aliases
    ' for specified url
        Dim hostInfo As IPHostEntry = Dns.GetHostByName(hostString)
        Console.WriteLine(("Host name : " + hostInfo.HostName))
        Console.WriteLine("IP address List : ")
        Dim index As Integer
        For index = 0 To hostInfo.AddressList.Length - 1
            Console.WriteLine(hostInfo.AddressList(index))
        Next index
    Catch e As SocketException
        Console.WriteLine("SocketException caught!!!")
        Console.WriteLine(("Source : " + e.Source))
        Console.WriteLine(("Message : " + e.Message))
    Catch e As ArgumentNullException
        Console.WriteLine("ArgumentNullException caught!!!")
        Console.WriteLine(("Source : " + e.Source))
        Console.WriteLine(("Message : " + e.Message))
    Catch e As Exception
        Console.WriteLine("Exception caught!!!")
        Console.WriteLine(("Source : " + e.Source))
        Console.WriteLine(("Message : " + e.Message))
    End Try
End Sub

' 导入命名空间
Imports System.Net
Imports System.Net.Sockets


Public Class Tester
    Public Shared Sub Main


        Try
            Dim myIPHostEntry As IPHostEntry = Dns.Resolve("www.google.com")
            Dim myIPAddresses() As IPAddress = myIPHostEntry.AddressList
            Dim myIPAddress As IPAddress

            Dim strIPAddressList As String

            For Each myIPAddress In myIPAddresses

                Console.WriteLine(myIPAddress.ToString)

            Next
        Catch ex As SocketException
            Console.WriteLine(ex.Message)
        End Try

    End Sub
End Class