Author name: Andrew Walding

Andrew Walding is the founder and president of CellStream, Inc., bringing more than 30 years of experience in telecommunications, broadband networking, Internet technologies, and technical education. His expertise spans network engineering, wireless and wireline communications, packet analysis, network operations, emerging technologies, and the design and delivery of advanced technical training programs. A Cisco-certified professional, IPv6-certified specialist, and CBRS Certified Professional Installer (CPI), he helps organizations and technology professionals understand, deploy, troubleshoot, and optimize modern communications networks.

Setting up an IPv6 ISATAP Tunnel in Windows 7

Post Views: 1,581 In this article we will discuss setting up and ISATAP (Intra-Site Automatic Tunnel Addressing Protocol) Tunneling in your Windows 7 machine.  In order to do this, we will use an ISATAP Server at Sanjiang University in China. Everything is good to go.  Your ISATAP Tunnel is running. To remove the ISATAP config, […]

Setting up an IPv6 ISATAP Tunnel in Windows 7 Read More »

, ,

Setting up A Web Server in Ubuntu Server 10.x and greater

Post Views: 1,224 Before I start, a couple of warnings.  Make sure you are running one of the latest (10.x or 11.x) versions of Ubuntu Server.  You can get this from the Ubuntu Web Site. Also make sure you have installed on the latest updates to your system. The procedure I have noted is done

Setting up A Web Server in Ubuntu Server 10.x and greater Read More »

,

Setting up a SSH Server in Ubuntu Server 10.x and above

Post Views: 1,255 This is really simple.We have chosen OpenSSH as the best software for the job.  Begin by opening a Terminal Window on the server.  Enter the following command to install OpenSHH:sudo apt-get install openssh-server Done! To test that it’s working, you can try to ssh into the server: ssh localhost You will be

Setting up a SSH Server in Ubuntu Server 10.x and above Read More »

, ,

Perhaps a top 10 Wireshark Display Filter List

Post Views: 1,709 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 Perhaps…. Wireshark uses a custom syntax to create display filters.  There are millions of possibilities, but here is perhaps a top 10 list. If you are looking

Perhaps a top 10 Wireshark Display Filter List Read More »

, ,

Neighbor Discovery (ND) Table in IPv6 Windows, Linux and MAC Machines

Post Views: 11,764 Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School A great question I was asked in class was: “If Neighbor Discovery processes have replaced ARP in ICMPv6, how do you look at the equivalent of the

Neighbor Discovery (ND) Table in IPv6 Windows, Linux and MAC Machines Read More »

, ,

Mileage Rates

Post Views: 1,646 As of 2025, the IRS has updated the standard mileage rates used to calculate deductible costs for operating a vehicle for various purposes. These rates are applicable to all vehicle types, including electric, hybrid, gasoline, and diesel-powered cars.IRS+6IRS+6IRS+6Axios+1IRS+1 🚗 2025 IRS Standard Mileage Rates These rates are optional and can be used

Mileage Rates Read More »

, ,

Keeping your Windows PC Software Up to Date

Post Views: 1,379 Hi everyone!   [Wow – this was a long time ago!  As of 2020 I have updated a little.] One of the challenges to any computer user is keeping software up to date with the latest features, bug fixes, and security patches.  Often this tedious process requires opening applications and seeing if the

Keeping your Windows PC Software Up to Date Read More »

, ,

IPv6 Windows Command Line Examples

Post Views: 3,673 Check out these additional IPv6 Resources: Our IPv6 overview course at Udemy Our IPv6 Custom Profiles for Wireshark Our IPv6 classes at the Online School Here are some great Windows command line entries you can make to examine and configure IPv6 (assuming your version of Windows does so).  We will discuss use

IPv6 Windows Command Line Examples Read More »

, , ,

Level-up Your Team’s Interpersonal and Professional Development Skills

Post Views: 1,587 Developing solid Interpersonal and Professional Skills are critical to human-to-human interaction and success.  Whether employee to employee, or employee to customer, even the most seasoned sales person or manager can loose focus on the key skills and processes we should use when interacting with customers, team members and subordinates. We can customize

Level-up Your Team’s Interpersonal and Professional Development Skills Read More »

CellStream Instructors are also available for Critical Projects

Post Views: 1,417 Put Industry-Leading Telecom Instructors to Work on Your Most Critical Projects CellStream instructors are not just content experts—they are seasoned industry practitioners who consistently earn exceptional evaluations from the professionals they train. Our instructional team is deeply experienced in broadband, IP networking, Wi-Fi, fiber, VoIP, MPLS, packet analysis, and next-generation network technologies.

CellStream Instructors are also available for Critical Projects Read More »

,
Scroll to Top