Calculadora de sub red

Calculadora de sub red
http://www.aprendaredes.com/cgi-bin/ipcalc/ipcalc_cgi?host=192.168.0.1&mask1=20&mask2=

Address (Host or Network) Netmask (i.e. 24) Netmask for sub/supernet (optional) / move to: limpiar Address:     192.168.0.1           11000000.10101000.0000 0000.00000001 Netmask: 255.255.240.0 = 20 11111111.11111111.1111 0000.00000000 Wildcard: 0.0.15.255 00000000.00000000.0000 1111.11111111 => Network:     192.168.0.0/20        11000000.10101000.0000 0000.00000000 HostMin: 192.168.0.1 11000000.10101000.0000 0000.00000001 HostMax: 192.168.15.254 11000000.10101000.0000 1111.11111110 Broadcast: 192.168.15.255 11000000.10101000.0000 1111.11111111 Hosts/Net: 4094 Class C, Private Internet AprendaRedes.com, Versión: 0.38