The End Fundamentals of Classful IPv4 addressing fundamentals-of-classful-ipv4-addressing Summary Help Summary 000006347 navneet.gaur, 2/13/2020 4:08 PM CCNA Certification Community

Now to answer your question in short, classful addressing divides IP addresses into 5 different classes, each with its own predefined address range and subnet mask. On the contrary, classless addressing …

For classful addressing your prefix takes into consideration the address class type. For example in 192.168.1.0/30 your classful addressing would dictate that it's a Class C address (24 network bits) …

Classful Addressing: All the classes of IP address such that A, B, and C comes in Classful. I mean /8 in case of Class A, /16 in case of Class B and /24 in case of Class C are classful. We can't change it …

Here is a configuration example when the protocol will behave classfully (but it still advertises a subnet-mask it's just converted to the classfull mask if it needs to move between boundaries): configure …

While using classful addressing, that is the only choice made available to you. So to effectively solve this problem of waste of IP address, classless addressing is implemented, where you would be assigned …

Im a bit confused as to the difference between classless and classful addressing, I understand that classful has 3 parts network, subnet and host, which means a class A B or C network that can be …

On a practical level, classful routing protocols (rip1, igrp) do not carry subnet mask information, classless routing protocols do. And classless routing protocols can handle CIDR masks.

Thank you,@Hamadeh Farajallah, CCIE#55306 Security, for this clear and practical breakdown of subnetting. Your step-by-step explanation, especially the focus on block size calculation and subnet …

I believe the book indicates that VLSM is only possible using a routing protocol that is classless... "To support VLSM, the routing protocol must advertise the mask along with each subnet... By definition, …