     @Test
     public void testBroadcast() {

         MacAddress mac;
         String sm;

         sm="ff:ff:ff:ff:ff:ff";
         mac = new MacAddress(sm);
         assertTrue(MacAddress.isBroadcast(mac));

         sm="1a:4c:05:49:ad:f9";
         mac = new MacAddress(sm);
         assertFalse(MacAddress.isBroadcast(mac));
     }