@Test
public void testToMACAddress() {

    byte[] address = new byte[] { 0x0, 0x11, 0x22, (byte) 0xff,
            (byte) 0xee, (byte) 0xdd};
    assertTrue(Arrays.equals(address, Ethernet
            .toMACAddress("00:11:22:ff:ee:dd")));
    assertTrue(Arrays.equals(address, Ethernet
            .toMACAddress("00:11:22:FF:EE:DD")));
}