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Stage 1: Network Fundamentals

Understand the big picture, network hardware, models, and the IPv4 and IPv6 address spaces.

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January 1, 1

Lesson 1.1a: Routers

A Router is a network device that operates primarily at Layer 3 (Network Layer) of the OSI model. The primary function of a router is to connect multiple different logical networks and forward IP packets between those …

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CCNA Network

January 1, 1

Lesson 1.1a: Routers

A Router is a network device that operates primarily at Layer 3 (Network Layer) of the OSI model. The primary function of a router is to connect …

5 min Read more