
AWS Certified Advanced Networking – Specialty (ANS-C01) Certification Guide
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As mentioned at the beginning of the previous section, there is another version of IP that is in use today: IPv6. This follows many of the same principles as IPv4 with some added capabilities and enhancements. In this section, you will learn why IPv6 was developed to address the limitations of IPv4, particularly its address exhaustion. You will explore the key differences between IPv4 and IPv6, focusing on the expanded address space, the use of hexadecimal notation, and how IPv6 subnetting works. Additionally, you’ll understand the concept of dual-stack networks, where IPv4 and IPv6 coexist, and the practical implications of transitioning to IPv6.
IPv6 was created to address the exhaustion of available addresses in IPv4. IPv4 offers over 4 billion unique addresses, which initially seemed sufficient to cover all potential use cases. However, researchers and engineers did not fully anticipate the significant expansion of the internet in the 1990s, nor the even greater...