SharkFest'24 US

Sake Blok

Sake has been analyzing packets for over 20 years. During his work, Sake started developing functionality for Wireshark while working with the analyzer in his day-to-day job. He also enhanced multiple protocol dissectors. In 2007, Sake joined the Wireshark Core Development team. In 2009, After working for a reseller of networking equipment for 8 years, he started the company SYN-bit to provide network analysis and training services to enterprises across Europe.


Sessions

06-17
09:00
480min
Pre-conference class II: Wireshark Filtering Masterclass
Sake Blok

The filtering capabilities in Wireshark are very flexible and powerful and have been significantly enhanced with the release of Wireshark 4.0. In this masterclass, your filtering skills will be taken to the next level. We will start with the basic operators and work our way through the more advanced filtering techniques like how to use display filter macros, dynamic filters (in combination with filter buttons), filtering arithmetics, regular expressions, etc. There will also be a comparison with using (advanced) BPF filters for filtering while capturing or post-processing pcap files.

Pre-conference class
Potomac Ballroom
06-18
15:30
60min
Gotta catch 'em all! A field test of portable gigabit taps
Sake Blok

Capturing packets on the road can be a challenge. Do you have access to the switch? Are you able to install Wireshark on the endpoints. What if one side says it sends packets, but the other side does not receive them. There are many situations in which a tap might be handy or needed to make a useful packet capture. In those cases, having a portable tap in your laptop bag is a life-saver.

There are a few portable USB powered gigabit Ethernet taps on the market that have different capabilities. I made an overview of available portable taps and reached out to vendors to supply me one for a thorough test. This presentation gives an overview of the portable gigabit taps on the market, their capabilities and how well they performed on the test-bench.

Intermediate
Potomac Ballroom
06-19
14:00
90min
The Packet Doctors are in! Packet trace examinations with the experts
Jasper Bongertz, Sake Blok, Ross Bagurdes

The experts on this panel have been asked to look at a trace file and help find a reason for certain behaviors by attendees at many SharkFests. Based on this, they’ve decided to create a public forum for examining individual trace files with a broader audience for a collective learning experience. Trace files will be gathered from attendees prior to SharkFest and only given to the panel members during the session so that the “not-knowing what to expect and whether it can be solved” experience of working through an unknown trace file can be preserved.

Come to this session and learn to ask the right questions and look at packets in different ways.

PLEASE SEND PERPLEXING TRACE FILES FOR ANALYSIS BY THE PANEL TO [email protected] PRIOR TO SHARKFEST!

Intermediate
Potomac Ballroom