Post Views: 1,896 Hi everyone! As many of you who have attended my conference presentations and Wi-Fi classes know, I spend time talking about the correct way of troubleshooting Wi-Fi networks. Power cycling or rebooting is NOT a first step. Here’s why: lets say you are having issues of some kind (slow speed, connectivity issues, […]
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Post Views: 47,545 In this tutorial I am going to make you a pro at using and leveraging the Wireshark TCP Graphing tools. As many of you who have taken my Wireshark Courses know, I am a big fan of visualizing what is going on in a given packet capture or conversation. My #2 troubleshooting
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Post Views: 12,849 A Wireshark TCP Analysis Flags cheat sheet is essential because TCP is the foundation of most modern network communications, and Wireshark’s built-in TCP Analysis engine automatically identifies performance problems, retransmissions, latency conditions, packet loss, flow-control issues, and connection anomalies that would otherwise require deep manual packet inspection. For many users, the TCP
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Post Views: 1,636 It’s graduation time. Congrats to all of you graduating!!! It seems that every year around this time someone will ask this great question. In my day, the answer was simple: none! Not anymore. If you’re interested in pursuing a degree in Network Engineering (what I call Network Science) and related technologies, several
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Post Views: 3,677 The following commands are like a cheat sheet of essential Windows repair commands. DO NOT USE THESE UNLESS YOU KNOW WHAT YOU ARE DOING. RESEARCH EVERY ONE OF THESE COMMANDS BEFORE EXECUTING. BACK UP YOUR SYSTEM PROPERLY. Command Purpose sfc /scannow Scans and Repairs corrupted or missing system files with the System
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Post Views: 14,519 Great question. The short answer is Yes – Starlink supports IPv6. Starlink is fully dual stack when it comes to IPv4 and IPv6 addressing. It is IPv6 capable and supports native IPv6 connectivity across all its routers, kit versions, and service plans. This includes the allocation of a /56 IPv6 prefix via
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Post Views: 8,076 Carrier-Grade NAT (CGNAT), also known as Large Scale NAT (LSN), is a network technology used by Internet Service Providers (ISPs) to extend the usability of the limited IPv4 address space by sharing a small pool of public IPv4 addresses among many customers. Why CGNAT Exists How CGNAT Works Technical Characteristics Challenges/Problems with
Post Views: 1,498 Moore’s Law is an observation made by Gordon E. Moore, co-founder of Intel, in 1965. He noted that: The number of transistors on a microchip doubles approximately every two years, while the cost of computers is halved. This effectively meant exponential growth in computing power and a decrease in relative cost over
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Post Views: 1,015 Ever wonder what it takes to network an industry showcase like ShowNet? ShowNet is a large-scale demonstration network built annually since 1994. It showcases cutting-edge networking technologies and provides stable internet connectivity throughout the exhibition floor. Over 400 engineers from academia and industry collaborate to design, deploy, and operate this network, utilizing
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Post Views: 1,338 Hi everyone. This relatively easy question came in today: “How do I find out the IP address of a particular web site?” The simplest way that most folks will remember is to use something called “Ping”. Ping is a basic network tool that checks if a computer or device is reachable over
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Post Views: 5,847 As QUIC has emerged to begin its takeover of the Transport Layer (OK – we will never see TCP totally disappear), I have written multiple articles on QUIC. You can look them over here. In the early days Google made this really easy right within the Chrome web browser. As time has
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Post Views: 2,305 Let’s start with some simple definitions of these protocols and how they work together. In Voice over IP (VoIP) to PSTN (telephone) network integration, MGCP and C15 can work together as part of a layered signaling architecture that bridges IP-based call control with traditional PSTN switching systems. Here’s how they fit and
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Post Views: 2,502 Yes, VPN applications do protect your traffic. A VPN is like wearing a costume or a mask because it masks your real identity and location (for the most part anyway), just like a costume or mask hides who you are in real life. That said, someone sold you the mask, so they
Post Views: 2,273 Teaching hexadecimal and binary, especially around bits, nibbles, and bytes, is an awesome way to introduce kids to how computers “think.” Let’s face it their world is fully computerized and networked. All communications is done in binary, bits, nibbles, and bytes. Heck, its the way computers think. Here is a deeper dive
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Post Views: 4,406 Teaching kids about networking (the digital kind, not social networking) can actually be a lot of fun if you break it down into simple, relatable concepts and use interactive activities. I have written other articles like teaching kids programming and teaching kids electricity. Here I want to talk about networking. Here’s a
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