Wireshark II: The Analysis

“Last week, you had the opportunity to look at Wireshark and its
ability to easily capture network packets. This week, you’ll take a
deeper dive into those Wireshark-infested streams and explore
analytical techniques and shortcuts that you can sink your teeth
into. Don’t worry, you won’t need a bigger boat to use any of these

“Wireshark, by itself, is an effective analytical tool and it
can point you in the right direction for some trouble spots. For
example, if someone on your network has an email virus, you can see
those packets, their source and their destination. Unfortunately,
you’ll see them mixed in with all of the other packets that you’ve
captured. The solution is selective filtering.”