Tag: network address translation

Colorful gear diagram of special-purpose IP addresses over a world map, highlighting loopback, link-local, and test-net ranges.
CCNA April 19, 2025

Special-Purpose IP Addresses – IPv4 and IPv6 (Updated April 2025)

IP addresses are the backbone of network communication, but not all IP addresses are created equal. Some are reserved for special purposes, serving unique roles in networking, from local testing to private networks and multicast applications. As of April 2025, with IPv6 adoption surpassing 70% of global internet traffic (per industry estimates), understanding both IPv4...
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CCNA October 7, 2019

Network Address Translation (NAT) – Exclusive Introduction

All public IPv4 addresses must be registered with a Regional Internet Registry (RIR). The registered holder of a public Internet address can assign these addresses to a network device. There is a maximum of 4.3 billion IPv4 addresses available. Still, with the increase of personal computing and the beginning of the World Wide Web, it...
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