docs: public boolean isWellKnownIPv4Translatable() { //rfc 6052 rfc 6144
  		//64:ff9b::/96 prefix for auto ipv4/ipv6 translation
  		if(getSegment(0).matches(0x64) && getSegment(1).matches(0xff9b)) {
  			for(int i=2; i<=5; i++) {
  				if(!getSegment(i).isZero()) {
  					return false;
  				}
  			}
  			return true;
  		}
  		return false;
  	}