class ConcreteInterfaceAddress extends InterfaceAddress {

  public static ConcreteInterfaceAddress parse(String text) {
    String[] parts = text.split("/");
    checkArgument(
        parts.length == 2,
        "Invalid %s string: \"%s\"",
        ConcreteInterfaceAddress.class.getSimpleName(),
        text);
    Ip ip = Ip.parse(parts[0]);
    int networkBits = Integer.parseUnsignedInt(parts[1]);
    return create(ip, networkBits);
  }

  private  ConcreteInterfaceAddress(Ip ip, int networkBits);

}