TAP Into Technology | Blog

[Video] VLAN Analysis with Wireshark 2.0

Posted by Tony Fortunato on 5/16/17 8:00 AM

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.

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Topics: Network Visibility/Monitoring, Wireshark

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

Posted by Tony Fortunato on 4/11/17 8:00 AM

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.

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Topics: Network Visibility/Monitoring, Wireshark

[video] Observing The Impact Multiple Default Gateways With Wireshark

Posted by Tony Fortunato on 2/16/17 8:00 AM

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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Topics: Network TAPs, Network Visibility/Monitoring, Wireshark

SharkFest Europe: A Common Interest to Better Learn How to Analyze Captured Network Traffic

Posted by Erik Hjelmvik on 11/24/16 8:00 AM

For packet geeks like me, the annual Wireshark conference SharkFest is the place to be in order to meet and network with other packet geeks. However, for various reasons I haven't been able to attend SharkFest before. So when my friend Jasper Bongertz mentioned that there was going to be a SharkFest conference here in Europe I felt that this was a chance I just couldn't miss.

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Topics: Events & News, Network Visibility/Monitoring, Wireshark

Sharkfest 2016 – Feeding Wireshark Every Bit, Byte and Packet®

Posted by Randy Clark on 6/23/16 8:00 AM

Insights from a first-timer by Randy Clark.

Garland Technology and our CEO/Co-Founder Chris Bihary have been attending and presenting at Sharkfest since its inception in 2008, this was my first dive into Sharkfest and the Wireshark community.

What I enjoyed most was how truly engaged the attendees were. The majority of my interactions were with network engineers that were inquisitive on how network TAPs integrated with Wireshark.

However, my favorite and most common question was, “There are four TAP vendors here, what makes Garland different?”

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Topics: Network TAPs, Events & News, Network Visibility/Monitoring, Technology Partners, Wireshark

Wireshark – From Ethereal to Today

Posted by Tim O'Neill on 6/7/16 8:00 AM

by Tim O’Neill, The Oldcommguy®

It has been my pleasure to know Gerald Combs, the inventor, founder and heart behind Wireshark, the number one downloaded open source network analyzer tool.

The story about Wireshark is entwined with the story of Gerald Combs, because it was always Gerald’s dream to build an open source, world class network analyzer.

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Topics: Network Visibility/Monitoring, Technology Partners, Wireshark