Nivel Red

Cuadro 8: Subredes y Máscaras que Pueden Definirse en una Red Clase B.

|Bits subred |No de subredes |No subredes (subred cero) |Bits host |No hosts |Máscara |
|0 |0 |0 |16 |65534 |255.255.0.0 |
|1|0 |2 |15 |32766 |255.255.128.0 |
|2 |2 |4 |14 |16382 |255.255.192.0 |
|3 |6 |8 |13 |8190|255.255.224.0 |
|4 |14 |16 |12 |4094 |255.255.240.0 |
|5 |30 |32 |11 |2046 |255.255.248.0 |
|6 |62|64 |10 |1022 |255.255.252.0 |
|7 |126 |128 |9 |510 |255.255.254.0 |
|8 |254 |256 |8 |254|255.255.255.0 |
|9 |510 |512 |7 |126 |255.255.255.128 |
|10 |1022 |1024 |6 |62 |255.255.255.192 |
|11 |2046 |2048|5 |30 |255.255.255.224 |
|12 |4094 |4096 |4 |14 |255.255.255.240 |
|13 |8190 |8192 |3 |6 |255.255.255.248|
|14 |16382 |16384 |2 |2 |255.255.255.252 |
|15 |32766 |32768 |1 |0 |255.255.255.254 |
|16 |65534 |65536|0 |0 |255.255.255.255 |

Cuadro 9: Subredes y Máscaras que Pueden Definirse en una Red Clase C.

|Bits subred |No de subredes |No subredes (subred cero) |Bits host |No hosts |Máscara |
|0 |0 |0 |8|254 |255.255.255.0 |
|1 |0 |2 |7 |126 |255.255.255.128 |
|2 |2 |4 |6 |62 |255.255.255.192 |
|3|6 |8 |5 |30 |255.255.255.224 |
|4 |14 |16 |4 |14 |255.255.255.240 |
|5 |30 |32 |3 |6...