14.15.10.90/15 --255.254.0.0				14.28.10.165
							
		 255.1111110.0.0			
endereço de rede:			|	rede	10.28.0.0

14.00001111.0.0
14.14.0.0

msacara de rede:					

255.254.0.0
255.1111110.0.0
endereço de broadcast?			|broadcast	14.29.255.255
14.15.255.255
14.00001111.255.255