Pdf Subnet Mask Cheat Sheet
Ipv6 is a complete and different animal as far as subnetting goes. Subnet mask cheat sheet if you are a network admin like us this is a little sheet that you will continually need access to. In a 30 cidr subnet there are total of 4 host ips but the usable host ips are 4 2 2 this subnet is usually used in point to point link connections e g links between routers where you only need 2 ips one on each end of the point to point link.