code: public boolean isEUI64(boolean asMAC) {
  		if(isExtended()) {//getSegmentCount() == EXTENDED_UNIQUE_IDENTIFIER_64_SEGMENT_COUNT
  			MACAddressSection section = getSection();
  			MACAddressSegment seg3 = section.getSegment(3);
  			MACAddressSegment seg4 = section.getSegment(4);
  			return seg3.matches(0xff) && seg4.matches(asMAC ? 0xff : 0xfe);
  		}
  		return false;
  	}
docs: Whether this section is consistent with an IPv6 EUI64 section,
  which means it came from an extended 8 byte address,
  and the corresponding segments in the middle match 0xff and 0xff/fe for MAC/not-MAC
  
  @param asMAC
  @return