IsValidIP - Validating an IP address

' Validate an IP address
' Example:
'   MessageBox.Show(IsValidIP("123.14.0.255")) ' => True
'   MessageBox.Show(IsValidIP("256.14.0.255")) ' => False

Function IsValidIP(ByVal ipAddress As String) As Boolean
    Return System.Text.RegularExpressions.Regex.IsMatch(ipAddress, _
        "^(25[0-5]|2[0-4]\d|[0-1]?\d?\d)(\.(25[0-5]|2[0-4]\d|[0-1]?\d?\d)){3}$")
End Function