In this chapter, we will primarily focus on layer 3 of the OSI reference model and learn how to analyze the layer 3 protocols (IPv4/IPv6) operations, as well as unicast and multicast traffic flow analysis. We will also look at the Address Resolution Protocol (ARP)/ND, dynamic and stateless IPv6 address configuration, and more. We will discuss the basic issues that you might face while troubleshooting these protocols.
We will learn how to analyze end-to-end IPv4 and IPv6 connectivity failures for unicast and multicast traffic using Wireshark.
While there are variously structured troubleshooting approaches available, the bottom-up troubleshooting approach is the most efficient and effective approach. It starts from the bottom layer (physical) of the OSI reference model. When there is an end-to-end connectivity failure between end points, this approach starts inspecting...