subnet mask

IPv4 ~ Subnetting Reference Guide (CIDR)

CIDR Subnet Mask Addresses Wildcard /32 255.255.255.255 1 0.0.0.0 /31 255.255.255.254 2 0.0.0.1 /30 255.255.255.252 4 0.0.0.3 /29 255.255.255.248 8 0.0.0.7 /28 255.255.255.240 16 0.0...