Practical Packet Analysis

A Slow Route

icmp-tracert-slow.pcap

The first step in solving any slow network problem is to determine the source of the problem. In the following scenario, the help desk has just received a call from Owen, who is complaining that his Internet connection is extremely slow.

What We Know

There isn't a whole lot that we need to know before we can begin to address this fairly straightforward complaint. We verify that the slow Internet issue persists regardless of the website visited. And, after further investigation, we learn that every machine on the same network as Owen is experiencing the problem.

Tapping into the Wire

Since Owen was the first one to complain about this issue, we will perform the analysis from his computer (though probably any computer ...