The value of the object tCpmMacFltrEntrySrcMACMask specifies
the source MAC mask value for this policy MAC filter entry.
The mask is ANDed with the MAC to match tCpmMacFltrEntrySrcMAC.
A zero bit means ignore this bit, do not match. A one bit means
match this bit with tCpmMacFltrEntrySrcMAC.
Use the value 00-00-00-00-00-00 to disable this filter criteria.