Simple questions about subnet terminology

[micahherron]

Hi, if I had class C networks with a /24 mask, and different networks connected together by a router like 192.168.1.0 and 192.168.2.0, do I refer to these as networks or subnets? My guess is I would refer to them as networks, because I have 24 network bits, 0 subnet bits, and 8 host bits, so I am not using subnetting?

Another subnetting question I had: I have read a few things which mentioned subnet masks less than /8. If you have a Class A network my understanding was it had to be at least /8 because of the 8 network bits?

[IAN WHITMORE · Accepted solution]

 if I had class C networks with a /24 mask

I think you answered the first question yourself

As for the second question, I think you are talking about supernets which is basically route or subnet aggregation. It helps keep the routing tables smaller if you can gather together many subnets in a supernet.

There is good example on wikipedia. Just google for supernet.

HTH,

Ian

[micahherron]

Thank you very much