View Tabel Subnet Mask
Pics. For the sake of the ip subnetting, it's fundamental remembering that a decimal value of 255 corresponds. The ip addressing scheme and subnet mask i.e subnetting are the building blocks in defining the subnetworks and understanding ip addressing.
The default subnet masks are three subnet masks that correspond to the standard class a, b, and c address assignments.
Each of the four bytes is eight bits long. Routers accomplish this by assigning subnet masks, a number that indicates where to look in the ip find the subnet mask. Why do you need subnets? Ipv4 subnet mask cheat sheet.