Networking
What is CIDR? Classless Inter-Domain Routing and Subnet Notation Explained
Learn CIDR notation, subnet masks, and how classless addressing replaced the old Class A/B/C system. Practical examples for cloud VPC design and network planning.
Ip-Addressing
Networking
What is NAT? Network Address Translation Explained with Examples
Understand how NAT works, why it exists, and the different types: static NAT, dynamic NAT, PAT, and CGNAT. Real examples from enterprise and cloud networks.
Networking
Why Do We Need IPv6? The Exhaustion Crisis and What Comes Next
IPv4 addresses have run out. Learn why IPv6 exists, how the exhaustion crisis unfolded, what NAT workarounds cost us, and why the transition matters now.