Question

Difference between classful and classless addressing in tabular form

Answer 1

Classless Addressing:

 It allows us to use variable length subnet mask are called (Variable Length Subnet Mask). Different subnet mask used in the same network. In this there is no boundary on host id as well as network id. Classless Addressing also called CIDR.There is no default subnet mask in classless routing.

Classful Addressing:

 In Classful addressing it divides IP address into the network ID as well as host ID. Same Subnet mask is used in complete network

 Disadvantage:

 is that it limits the number of network that can be provided to the network. 

Answer 2

An IP isn't classful or classless however this term is appropriate to systems and directing protocols.

Classful addressing: In the classful addressing system all the IP addresses to that are accessible are isolated into the five classes A,B,C,D and E, in which class A, B and C address are much of the time utilized on the grounds that class D is for Multicast and is once in a while utilized and class E is reserved and isn't as of now utilized.

Classless Addressing: Classless addressing system is otherwise called CIDR(Classless Inter-Domain Routing).Classless addressing to is an approach to dispense and determine the Internet addresses to utilized as a part of between space steering more adaptable than with the first arrangement of Internet Protocol (IP) address classes.