I am facing some problem with the IP subnetting...
We have 3 classes being used for subnetting.
Class A: 1 to 126
126.96.36.199 - 188.8.131.52
Class B: 128 - 191
184.108.40.206 - 220.127.116.11
can we use network 18.104.22.168
Class C: 192 - 223
192.0.0.0 - 22.214.171.124
can we use network 126.96.36.199 ?
Another confusion is with regard to the number of networks available in a specific class.
Lets talk about Class A.
We have last three octets reserved for Hosts and Subnets, which means we can have 16777214 hosts ... however what about the Number of Networks in Class A?
In few of the sites they have calculated
2^7-2 = 126 networks for class A.
Whereas in Cisco site they dont subtract 2 for determining Number of Networks ...
Plus why 2^7 for networks, why not 2^8?
Waiting for some quick responses
Thanks and regards