[Seyram Kelvin Anku-Etu]

We need IPv6 because IPv4 is almost run out and to meet the growing demands of IoT devices.

[Seyram Kelvin Anku-Etu]

The extensive early adoption of IPv4 and the application of methods like NAT (Network Address Translation), CIDR (Classless Inter-Domain Routing), and VLSM to increase its usability are the reasons it has endured this long. But with an increasing number of devices connecting to the internet, it isn’t sustainable because its 32-bit address space only offers roughly 4.3 billion unique addresses.

[Seyram Kelvin Anku-Etu]

Because to NAT, effective address usage strategies, and its vast existing infrastructure, IPv4 has endured for a long time. Nevertheless, it is unsustainable due to its tired and constrained address space, which complicates NAT, and its inability to effectively serve the increasing number of devices. These problems are resolved by IPv6’s enhanced functionality and wider address space.

[Seyram Kelvin Anku-Etu]

IPv4 has lasted thus long mostly thanks to Network Address Translation (NAT) and the private address system but this is not without shortfalls.

[Seyram Kelvin Anku-Etu]

What are the disadvantages of CIDR and VLSM?