Let’s say you deal with HUGE packet captures and you need to parse or carve out certain types of packets or conversations from the source. This is particularly true for folks that use Ring Buffers, or folks who do huge captures over long time period with fast interfaces. If you do this you start to […]
Carving and Parsing Packet Captures Read More »
If you deal with enormous capture files, speeding up your work process is crucial. Watch this video for a demonstration and example of how you can solve this issue: What I have below is a minimized dissector profile you can use. This is a minimized dissector profile that will reduce Wireshark crashes, speed your carving/parsing
A Minimized Dissector Configuration Profile for Wireshark Read More »
The following is a detailed explanation regarding our NetSci Certification Program Version 2, targeted to Field Operations and Central Office Operations technical staff, and how it works at the Online School of Network Sciences. You can read more at the Online School right here. If you are interested in the CSR (Customer Service Representative) certification
CSI-SP-TECH-CERT Technician Certification Program Read More »
So often we use Linux as a virtual machine or even as a test or capture system. If you are a little rusty on Linux, or brand new to it, there is a lot to learn. This article is like a mini starter course on Linux. I have built this mini course by condensing some
Getting Started with Linux – A Beginners Linux Mini-Course Read More »
Are you one of those people that always has the latest tech in their pocket, on their desk, or in their backpack? Early adoption does not just apply to things you can touch and buy, but can also be to web services and apps. If so you would probably consider yourself an early adopter. I
Are you an early technology adopter? Read More »
If you are a Mac user, you have probably assumed that Preview (the MacOS PDF viewer) is just a viewer and can do little else. If so, you would be wrong. While there are a number of things Preview can do, one of the most important is that it can save PDF files in different
Using MacOS Preview to save PDF’s in Different Sizes Read More »
What exactly is the purpose of the IP ID field? This is actually a great question. While many have tried to answer the question in various articles on the Internet, I thought the question deserved a clear answer to the question. RFC 6864 updated RFC’s 791, 1122, and 2003 to clarify the definition of the
The Purpose of the IP ID Field Demystified Read More »
We are proud to be, or have been, members and/or work closely with the following Telephone/Broadband Associations: Telephone Association of New England
Telephone/Broadband Association Memberships Read More »
This question (really two questions) has been popping up quite a bit lately. Let me see if I can explain. First, let’s define what SD-WAN is. SD-WAN leverages the SDN concept of separating the control plane from the data plane and creating a controller running software that can enact control and policies on the network.
What is SD-WAN? Does it replace MPLS? Read More »
If you have been living in a cave or an island or a mountainside somewhere and have not heard, the new weapon of choice is cyber-security based. Attacking a company by wiping out it’s databases and computer files and/or spreading a virus and/or creating malware seems to be the most lethal and fearless method these
Searching for the Root of the Network Security Issues Read More »
That’s right! ARIN formally announced today that IPv4 Adresses are gone – gone – gone in North America: That means that everyone is down to whatever they have. It also means that if your organization is not prepped to convert to IPv6 with a solid plan, it ought to be! Plus you need to tune
ARIN Formally announces IPv4 Address Depletion Read More »
CellStream, Inc. – Telecom Consulting and Training! 2-Day Instructor Led Hands On Lab Class Available in either Web Based delivery or On-Site Delivery Minimum 10 students – Maximum 16 students Course Description: As more and more networks undertake the Internet Protocol Version 6 (IPv6), details of implementation are vital to anyone who is in the
CSI-HO-018 – Hands On Advanced IPv6 Read More »
For those of you who run GNS3 and/or Virtual Box or VMware and would like to have a free legitimate Windows image, Microsoft Internet Explorer team has provided an answer! Did I mention it is free? Don’t believe me? Go here and look. You can download different versions of Windows with different versions of Internet
Free Windows Virtual Machines from Microsoft Read More »
Check out these great references as well: Our custom profiles repository for Wireshark Our Udemy course on Wireshark Our Udemy course on Wireless Packet capture When using Wireshark, on some computers, the number of interfaces present due to things like virtualization and other configurations can be overwhelming. Some times, like when we are using Wireless
Controlling Displayed Network Interfaces in Wireshark Read More »
Check out these great references as well: Our custom profiles repository for Wireshark Our Udemy course on Wireshark Our Udemy course on Wireless Packet capture A common question I get is how can I set up a custom local name resolution file for IP and MAC addresses in Wireshark. We discussed basic name resolution in
Setting up Custom Wireshark Name Resolution Files Read More »
