Network Analysis Using Wireshark 2 Cookbook - Second Edition
by Nagendra Kumar Nainar, Yoram Orzach, Yogesh Ramdoss
Locating Wireshark
The first step after understanding the problem and deciding to use Wireshark is the decision on where to locate it. For this purpose, we need to have a precise network illustration (at least the part of the network that is relevant to our test) and locate Wireshark.
The principle is basically to locate the device that you want to monitor, connect your laptop to the same switch that it is connected to, and configure a port mirror or in Cisco it is called a port monitor or Switched Port Analyzer (SPAN to the monitored device. This operation enables you to see all traffic coming in and out of the monitored device. This is the simplest case.
You can monitor a LAN port, WAN port, server or router port, or any other device connected ...
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