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And the last part of the Subnet Mask is set to 0 (zero), which equal to 8-bits. It means 8-bits are available for the host addresses. Similarly, let take another example of Subnet Mask like 255.255.255.192. Here, the last part represent 192 (128 + 64 + 0 + 0 + 0 + 0 + 0 + 0) …
The subnet mask is 24 bits, and the value is 192.168.1, or we can say 192.168.1.1/24. The total number of network ids possible is 0xFFFFFF in the case of the C class IP address. Which a considerable amount. Subnetting gives an opportunity of dividing the broad range into smaller ones. In our example, the subnet mask is 192.168.1.1/24.
IPv6 ,Subnet, Cheat Sheet. IPv6 is a complete and different animal as far as subnetting goes. Please note the yellow rows as each has special common use or notes. If there is nothing in the "Amount of a /64" column that means it is to miniscule or to massive to justify calculation. Not much is the same with IPv6 compared to IPv4.
Default Subnet Mask: 255.255.0.0; Here, 16 bits are reserved for the network, and the remaining 16 bits are reserved for the host. Class C IP Address. CIDR Value: /24 (CIDR is the value of the number of network bits) IP Address: 192-223; Default Subnet Mask: 255.255.255.0; Here, 24 bits are reserved for the network, and the remaining 8 bits are reserved for the host. IPv4 Subnetting Tutorial