block size
The number of addresses in one subnet, such as 64 for a /26. Subnets always start at a multiple of it (.0, .64, .128, .192), which lets you place an address without doing binary.
The number of addresses in one subnet, such as 64 for a /26. Subnets always start at a multiple of it (.0, .64, .128, .192), which lets you place an address without doing binary.