Subnetting for Success: Optimizing Class C Networks

How can we maximize the use of subnets in a Class C network?

A. Router(config)#ip classless

B. Router(config)#ip version 6

C. Router(config)#no ip classful

D. Router(config)#ip unnumbered

E. Router(config)#ip subnet-zero

F. Router(config)#ip all-nets

Answer:

To utilize 8 subnets in a Class C network, the command needed is 'Router(config)#ip subnet-zero'.

Subnetting in networking allows us to divide a large network into smaller, more manageable subnetworks. This helps in efficient utilization of IP addresses and improved network performance.

When working with a Class C network, which has a default subnet mask of 255.255.255.0, using the 'ip subnet-zero' command is essential to maximize the use of subnets. Without this command, the first and last subnets are typically not usable due to them being reserved for network and broadcast addresses.

By enabling 'ip subnet-zero', we can leverage these traditionally reserved subnets, effectively increasing the number of usable subnets in our network. This optimization ensures that all available subnets can be utilized efficiently, enhancing the scalability and flexibility of the network.

It's important to understand the specific commands and configurations required for efficient subnetting in different network classes to achieve optimal performance and resource utilization.