Analyzing routing problems

One of the most critical issues in networks is routing. These include routing loops, no route to destination, and many more. Most of the routing problems will not require using Wireshark in order to solve them. In most of the cases, some knowledge of routing principles and protocols along with common sense will do the job. In this recipe, we will try to provide some basic tips along with some basic issues such that Wireshark can be of assistance.

Getting ready

First, make sure you are familiar with the very basic commands, Ping and Tracert (or Traceroute). In most of the cases, these commands along with logging in to the routers will help you with solving the problems.

In this recipe, we will show some important things on the captured file that can indicate a routing problem.

How to do it...

In this section, we will not give a recipe of what to do, like we usually do, but rather mention things to watch and notice.

Among the things you should notice, the crucial ones...