macos

Hosting a local GNS3 server inside an OrbStack Linux machine on Apple Silicon offers a flexible networking lab environment, though it introduces a few key constraints: No x86_64 KVM virtualization: Hardware acceleration is unavailable for nested x86_64 VMs. Emulation overhead: Running x86_64 Linux binaries relies on Rosetta emulation, introducing a slight performance penalty. Network limitation: OrbStack uses a custom-built virtual network stack that does not support bridged networking . The Cloud and NAT nodes will not function. Note: QEMU and libvirt are disabled due to these constraints. ...

Though remote development is not available out of the box for Sublime Text, we can enable a form of it with the sublime-rsync-ssh package. This versatile plugin has many features and options, but this post will focus solely on syncing a single local folder to a remote folder. I recommend you peruse the README for more information. Prerequisites Sublime Text with macOS is used in the examples, but it’s still applicable for Windows and Linux. Cygwin is required for Windows. ...

After opening the GNS3 client and starting nodes, we primarily access the remote virtual devices with a console connection. This console connection is either Telnet, VNC, or SPICE. A console connection covers our requirement for physical access to virtual devices, but today, most administrative tasks are carried out with a link to the network management interface . I define the GNS3 server as remote if the gns3server process is not running on the host operating system. I consider the GNS3 VM remote because the gns3server process runs on a guest operating system (Ubuntu). ...

Why not add the CSR 1000v to round out our collection of Cisco virtual appliances? Similar to the Cisco Nexus 9000v, each instance of the Cisco CSR 1000v requires a considerable amount of hardware resources to run. Again, I recommend a Mac with at least 16GB of memory and a dual-core CPU if you plan to run more than a single instance. Ingredients used in this guide: macOS Mojave (10.14) VMware Fusion 11 Pro Vagrant 2.2.3 VMware provider for Vagrant Cisco Cloud Services Router 1000V Series A valid service contract is required for the download. ...

The Cisco Nexus 9000v shares the same software image as its hardware counterpart, so it provides a terrific solution for feature testing and/or network automation. The only caveat is the hardware resources required to run it. I recommend a Mac with at least 16GB of memory and a dual-core CPU. Ingredients used in this guide: macOS Mojave (10.14) VMware Fusion 11 Pro Vagrant 2.2.3 VMware provider for Vagrant Cisco Nexus 9000v Switch Steps 1. Sign in to your Cisco account to download the Nexus 9000v Switch software. The software is available here Select the Download Options link Select the version from the menu on the left. For my example, I will be using the Release 7.0(3)I7(5a) Click the Download button for Cisco Nexus 9000/3000 Virtual Switch for ESXi or Fusion Save the nxosv-final.7.0.3.I7.5a.ova file to the Downloads folder 2. Create the Cisco Nexus 9000v template. Open the VMware Fusion application Menu: File → Import… Click the Choose File… button Navigate to and select the nxosv-final.7.0.3.I7.5a.ova file in the Downloads folder Click the Open button Click the Continue button Click the Continue button to use the Default profile Save As: Nexus Click the Save button Click the Customize Settings button to modify the virtual appliance settings Set Processors to 2 processor cores Set Memory to 6144 MB Set Network Adapter to Share with my Mac Remove CD/DVD (IDE) Upgrade the VM hardware version to 16 (Compatibility → Upgrade) Close the Settings window Quit the VMware Fusion application 3. Remove additional network interfaces from the virtual appliance configuration file. From a macOS terminal, remove Network Adapter 2 to Network Adapter 10. ...

And yet another virtual network appliance to Vagrantize… Ingredients used in this guide: macOS Mojave (10.14) VMware Fusion 11 Pro Vagrant 2.2.3 VMware provider for Vagrant Cisco IOS XRv Router v6.1.3 The Cisco IOS XRV Router image is available as part of your Cisco VIRL subscription. Steps 1. Convert the disk image format type. The Cisco IOS XRv Router is provided in the qcow2 (QEMU) disk image format. The QEMU disk image utility (qemu-img) is required to convert the disk image to the vmdk (VMware) format. The utility is included with the qemu package. Use either MacPorts or Homebrew to install. ...

Continuing my journey to Vagrantize more virtual network appliances… Ingredients used in this guide: macOS Mojave (10.14) VMware Fusion 11 Pro Vagrant 2.2.2 VMware provider for Vagrant FortiGate-VM The FortiGate VM includes a limited embedded 15-day trial license that supports: 1 CPU maximum 1 GB RAM maximum Low encryption only (no HTTPS administrative access) All features except FortiGuard updates Steps 1. Download and unzip the FortiGate VM deployment package for VMware. FortiGate VM deployment packages are included with FortiGate firmware images on the Customer Service & Support site. I will be using FortiGate VM v6.0.2 for my example. ...

Steps Identify or create the VMnet for capturing network traffic. If you’re using the standard version of VMware Fusion, this will be Share with my Mac (vmnet8), Private to my Mac (vmnet1), or Bridged (vmnet0). VMware Fusion Pro includes the feature to create additional custom VMnets with the virtual network editor. Note that a host adapter is not required to capture traffic on the VMnet. Create a named pipe (FIFO) file for the VMnet. I prefer to create a separate file for each VMnet. It provides the flexibility to capture and display on multiple VMnets simultaneously. Run the following command in Terminal: ...

Cisco Router and Security Device Manager (SDM) is a Web-based device-management tool that enables you to deploy and manage the services on a Cisco IOS router. Even if you decide to do your initial configuration with the CLI, the Monitoring mode of SDM is a great way to display a graphical real-time pulse of the state of your router. The SDM application can run either as an application installed on your Windows PC or from the router’s flash thru the web browser. This post will show you how to run the SDM application on Mac OS X. This should go without saying, but don’t expect official support from Cisco regarding this configuration. ...

I recently had an issue where I wanted to play a movie on one of my portable devices, but the file’s audio stream is encoded in the AC3 (Dolby Digital) format. But of course, the device doesn’t support AC3, so I need to convert it to a compatible format. Handbrake is my go-to tool for media file conversion, but it no longer supports output to XviD – specifically the AVI container. I could convert the whole file, but I was looking for a way to transcode the audio but leave the XviD video stream intact. This method is ideal because transcoding video is the most time-consuming operation of the media file conversion process. I researched further with the knowledge that Handbrake leverages FFmpeg. ...