From the course: Networking Foundations: IP Addressing

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Subnet addressing

Subnet addressing

From the course: Networking Foundations: IP Addressing

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Subnet addressing

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- Subnetting naturally occurred out of the inflexibility of the class full address system. You see, not all networks are going to fit nicely into the small, medium and large groupings that the address classes were invented for. Let's say we're wanting to use the 10.0.0.0/8 class A address for our network. We want to break our network up into smaller networks with about 50 windows, 10 computers in each network. The 10/8 address and mask allows us to address millions of hosts, but they'd all need to be in the same network. Thankfully we can sub-net the network. It is simple. We're going to take the 8-bit mask, which is 255.0.0.0, and we're going to steal bits from the host identification portion of the address. For example, we had the 10.0.0.0 with the /8 mask, but if we change that to a /10 mask, we would have 255.192.0.0 for the mask, and we're stealing two bits to create additional networks. How many additional…

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