5 most important classes to know in IP address

Hi, everyone on today we are going to move on with 5 most important classes you need to know about in IP address in simplified ways.

5 Classes are Class A, Class B, Class C, Class D, and Class E. But this will be our new update for CCNA that we are going to learn on only these 3 classes of IP address basics in short notes or details to easily remember are as follows:

In Class A, 

• It ranges from 0 to 127.
• 0 is collected as default ( i.e., 0.0.0.0 ).
• A private IP range can be from 10.0.0.0 to 10.255.255.255.
• CIDR [Classless Inter Domain Routing] value for Class A is 8. For example., 10.0.0.0/8.  
• There are 1 network and 3 host. Subnet mask will be 255.0.0.0
• 127 network is called as loopback. For example., 127.x.x.x

In Class B,

• It ranges from 128 to 191.
• It's CIDR value is /16.
• Subnet mask will be 255.255.0.0
• There are 2 network and 2 host
• There are 18 private IP address which ranges. i.e., 172.16.x.x to 172.31.x.x are APIPA [Automatic Private Internet Protocol Address]

In Class C,

• It ranges from 192 to 223
• There 3 network and 1 host
• It's subnet mask will be 255.255.255.0
• It's private IP address ranges from 192.168.0.x to 192.168.255.x

Stay tuned for more information to be shared and also make sure share this to you friends to learn these simplified notes for preparing CCNA. So, far we have learned basic notes on Class A. Class B, and Class C in short points to remember.