怎样得到我本地机器的所有IP？

[C#]
string s ="";
System.Net.IPAddress[] addressList = Dns.GetHostByName(Dns.GetHostName()).AddressList;
for (int i = 0; i < addressList.Length; i ++)
{
s += addressList[i].ToString() + "\n";
}
textBox1.Text = s;

[VB.NET]

Dim s As String = ""
Dim addressList As System.Net.IPAddress() = Dns.GetHostByName(Dns.GetHostName()).AddressList

Dim i As Integer
For i = 0 To addressList.Length - 1
s += addressList(i).ToString() + ControlChars.Lf
Next i
textBox1.Text = s