'Checks if address is an IEEE 802.1D MAC Bridge Filtered MAC Group Address
This range is 01-80-C2-00-00-00 to 01-80-C2-00-00-0F. MAC frames that
have a destination MAC address within this range are not relayed by
bridges conforming to IEEE 802.1D'

def isBridgeFiltered(self):

    return ((ord(self._value[0]) == 1) and (ord(self._value[1]) == 128) and (ord(self._value[2]) == 194) and (ord(self._value[3]) == 0) and (ord(self._value[4]) == 0) and (ord(self._value[5]) <= 15))
