< standard number of bits for network prefix. Less subnets, more hosts. Notation 1: Subnet Masks: The subnet mask is a 32-bit value constructed ... ... <看更多>

You can use ipcalc, a nice *nix tool to guide you: ~ $ ipcalc 192.168.0.120/25 Address: 192.168.0.120 11000000.10101000.00000000.0 1111000 ... ... <看更多>