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  • Blog Author Archives: Mark Jacob

    How to extract your outside IP address-without a chicken or a monkey

    Frequently I find myself asking students in my Network+ or Cisco CCNA classes to divulge their favorite resource to use when they want to determine their external (publicly accessible) IP address. Here are some of the more popular answers: whatismyip.com Or ipchicken.com. Or perhaps even better, the ipmonkey.com: I did not include the actual IP … Continue reading How to extract your outside IP address-without a chicken or a monkey

    How to get Wireshark to work with Microsoft Windows Server 2012 R2

    I am a long time user of WireShark and I frequently use it for demonstrations in my networking classes. I recently upgraded my instructor workstation and WireShark stopped working. It would start, but then hang. When I checked Task Manager, a process called dumpcap.exe was not responding and like in the movies, hard to kill. … Continue reading How to get Wireshark to work with Microsoft Windows Server 2012 R2

    How to Change Routing Tables with a Windows Command Prompt – From the CompTIA Network + Course

    In this CompTIA Network + training video, instructor Mark Jacob demonstrates how to use a standard Windows Command Prompt to manipulate routing tables. Transcription: I want to show you something from what you will learn in the labs of this course such as manipulating routing tables. If you’re new to the environment you may be … Continue reading How to Change Routing Tables with a Windows Command Prompt – From the CompTIA Network + Course

    IPv6 Port Redirection

    In this video, Cisco CCNA Instructor Mark Jacob demonstrates how to do port redirections in IPv6. Video Transcription:   Back in November, I wrote a blog. If you read the blogs  at InterfaceTT.com, and it was about IPv6. In fact, I’ve got it up on screen there. You can get IPv6 in your home. I … Continue reading IPv6 Port Redirection

    Performance testing and monitoring using free tool NTttcp from Microsoft

    In my classes, whether it is a Cisco class or a CompTIA Network + class, one of the topics always considered is monitoring the network. It turns out that there is a cool tool that is available from Microsoft that allows a network admin to stress test a network connection and monitor the results. Simply … Continue reading Performance testing and monitoring using free tool NTttcp from Microsoft