Archive for March, 2015

1. TCP Analysis and the Five-Tuple

   The TCP expert of Wireshark is doing a pretty good job at pinpointing problems, helping analysts to find the packets where things go wrong. Unfortunately, there are some things that can throw the expert off pretty badly, which can fool inexperienced analysts in believing that there are big problems on the network. I did a […]

2. Advanced display filtering

   Wireshark has a lot of display filters, and the filtering engine is really powerful. You can filter on almost anything in a packet, and ever since the filter box started suggesting possible filter expressions it got really easy to find the one you wanted.