TAP into Technology

Group Packet Competition at Sharkfest Europe 2017

on 11/2/17 8:00 AM By | Chris Bihary | 0 Comments | Network TAPs Events & News Wireshark

Sharkfest Europe is back for a second year, and Garland Technology is continuing our support of the Wireshark community by sponsoring this year’s Group Packet Competition. While Sharkfest is well established in the US as the premier educational conference for Wireshark users to share knowledge, experiences, and best practices, over in Europe, the conference is still in its early years. At Sharkfest, the Group Packet Competition is designed to bring teams of Wireshark users together. Each team is given a group of trace files and a sheet of questions. Then, they are challenged to race against the clock to find the answers, often using areas of Wireshark they aren’t familiar with. The Competition is a great way to teach users of all different skill levels new tricks about the analyzer in a fun environment.

Packet Challenge at Sharkfest - A Great Way to Test Your Skills!

on 6/20/17 8:00 AM By | Chris Greer | 0 Comments | Network TAPs Events & News Wireshark

This year at Sharkfest, Garland Technology is sponsoring the group packet challenge (Thank you!). As packet-heads, we all enjoy digging through trace files and finding the hidden gems that lead to resolving a problem. If most of our capturing experience is from a single network or enterprise, it can be hard to grow in new areas and pick up new tricks in packet analysis. Sharkfest is an excellent way to hone our skills and bring our art of analysis to a new level. The group packet challenge at Sharkfest is designed to bring together Wireshark users from all skill levels in a timed team event. Participants are given several trace files and a question sheet, then as a team they race to find the answers. Typically, the packet challenge will require them to use areas of Wireshark that they may not be as familiar with, which can teach them new things about the analyzer in a fun setting.

Are my Packets Lying? - 4 Things to Look for in Packet Traces

on 6/13/17 8:00 AM By | Chris Greer | 0 Comments | Network TAPs TAPs vs SPAN Wireshark

Packets don’t lie – well, most of the time. They tell the truth unless they have been captured incorrectly. In those cases, packets can tell bold-faced lies. When digging through trace files, we can come upon symptoms in the packets that may raise an eyebrow. These are events that look strange on the surface and may even divert our troubleshooting focus for a time. In fact, some of these issues have misdirected engineers for hours, if not days, causing them to chase down issues and events that simply did not exist on the wire.

[Video] VLAN Analysis with Wireshark 2.0

on 5/16/17 8:00 AM By | Tony Fortunato | 0 Comments | Network Visibility/Monitoring Wireshark

When I teach Wireshark classes, I commonly get asked, “What do I do when I get back to my desk?”, “What if I can’t span a port, or don’t have a TAP?” I typically show my attendees dozens of “Baselines” that would only take a few minutes to complete. Here’s an example of one of my favorite baselines; Start a capture and analyze whatever you see. No taps, span or mirror ports.

[Video] How To Determine DHCP Option 60 Value Using Wireshark

on 4/11/17 8:00 AM By | Tony Fortunato | 0 Comments | Network Visibility/Monitoring Wireshark

There are an increasing number of network attached devices, and trying to keep them organized gets to be challenging. Since different devices might require different IP configuration settings and statically configuring them isn’t realistic. There are several approaches to deal with this.

[video] Observing The Impact Multiple Default Gateways With Wireshark

on 2/16/17 8:00 AM By | Tony Fortunato | 0 Comments | Network TAPs Network Visibility/Monitoring Wireshark

I was speaking with a client the other day and they were asking me how Microsoft behaves if a device has two default gateways. One thing I have to say about my job and clients, I always get interesting scenarios and questions to figure out.

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Group Packet Competition at Sharkfest Europe 2017

Packet Challenge at Sharkfest - A Great Way to Test Your Skills!

Are my Packets Lying? - 4 Things to Look for in Packet Traces

[Video] VLAN Analysis with Wireshark 2.0

[Video] How To Determine DHCP Option 60 Value Using Wireshark

[video] Observing The Impact Multiple Default Gateways With Wireshark

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