April 2023

This is Part 2 of 3 of my IPv6 study notes for the CCNA. In this lesson, Configuring IPv6 addresses using EUI-64, we continue our studies of IPv6 for the CCNA. In Part 1, Introduction to IPv6 for the CCNA, we learned how to do some basic IPv6 router configurations – how to enable IPv6 […]

This lesson is an introduction to IPv6 for the CCNA. This is Part 1 of 3 of IPv6 study notes for the CCNA exam. The lesson begins with a review of the hexadecimal number system to help us understand the structure of an IPv6 address. We then discuss why we need IPv6. We then explore

This lesson covers RIP & EIGRP function and configuration. Routing Information Protocol (RIP) and Enhanced Interior Gateway Routing Protocol (EIGRP) are both distance vector interior gateway protocols. The previous lesson, Types of dynamic routing protocols, introduced dynamic routing protocols types, algorithms, and metrics. Dynamic routing involves configuring a dynamic routing protocol on a router, whereas

This lesson kicks off a series of lessons on dynamic routing. This lesson introduces dynamic routing protocols types, algorithms, and metrics. The lesson on routing fundamentals covered connected and local routes – these are automatically added in the routing table when you configure IP addresses on router interfaces. The lesson on static routing introduced static

In this lesson we learn how to configure static routes in the CLI of Cisco routers. Static routing is a very important topic in computer networking and for the CCNA. In the previous lesson, Connected and local routes, we looked at the basics of routing, how routers decide where to forward packets. We explored two

In the Ethernet LAN switching lessons we looked at how switches forward frames to their destination. The process routers use to forward packets to their destination is different, and that’s what we start exploring in this lesson. This lesson covers the basics of routing – how routers decide where to forward packets. We look at

We covered Ethernet LAN switching in two parts (How traffic flows within a LAN and How switches forward frames), in which we looked at how traffic is forwarded within a LAN. In this lesson we start studying how traffic is forwarded between different LANs. These CCNA study notes are moving up the OSI model from

This is Part 2 of 2 of Ethernet LAN switching CCNA study notes. Part 1, How traffic flows within a LAN, gave a high-level overview of how switches move frames within a LAN using MAC addresses. This lesson looks at how PCs within a LAN communicate and how switches forward frames to their destination. We

This is Part 1 of 2 of Ethernet LAN switching CCNA study notes. The broad learning objective of parts 1 and 2 is to understand how traffic flows within a LAN. This lesson (Part 1) gives a high-level overview of how switches move frames within a LAN using MAC addresses. In this lesson we start

This is Part 2 of 2 of NAT (Network Address Translation) study notes for the CCNA 200-301 exam. NAT study notes Part 1 introduced NAT and covered static NAT configuration. This lesson covers dynamic NAT configuration and dynamic PAT configuration. In static NAT, the router maps a private IP address to a fixed public IP