Descriptions of open source networking software for Linux or BSD systems: configuration, operation, maintenance
In this post, I walk through the process of building reusable IRRd and bgpq4 container images that can be dropped into any network emulator that supports Docker containers, such as Containerlab, GNS3, or Kathará.
Five years after I first reviewed it, Containerlab has matured into a polished, developer-friendly platform with a rich ecosystem of tools built around it. In this post, I will revisit Containerlab and cover what has changed since my original review.
Use the Kathará network emulator to recreate one of the most famous BGP hijacking incidents in Internet history, the 2008 YouTube hijack. By building a small network topology and simulating a similar attack, you will learn both the fundamentals of Kathará and to gain hands-on experience with BGP security concepts.
The Cloonix network emulator continues to be actively developed. In version 53, it provides container support, a rootless installation option, experimental support for WiFi emulation, and a simplified user experience.
This post will review how the Containerlab network emulator works with the FRR open-source router.
The Antidote network emulator, part of the Network Reliability Engineering project, offers a web interface that presents network emulation scenarios to users as documented lessons. Each lesson is presented in a window running Jupyter Notebooks and contains commands that the user can click on to run them on the virtual nodes in the network emulation
Vrnetlab, or VR Network Lab, is an open-source network emulator that runs virtual routers using KVM and Docker. Software developers and network engineers use vrnetlab, along with continuous-integration processes, for testing network provisioning changes in a virtual network. Researchers and engineers may also use the vrnetlab command line interface to create and modify network emulation
In this post, I demonstrate how to create a network emulation scenario using Libvirt, the Qemu/KVM hypervisor, and Linux bridges to create and manage interconnected virtual machines on a host system. As I do so, I will share what I have learned about network virtualization on a Linux system. Libvirt provides a command-line interface that
Microsoft Azure unofficially supports nested virtualization using KVM on Linux virtual machines, which makes it possible to build network emulation scenarios in the cloud using the same technologies you would use if you were using your own PC or a local server. In this post, I will show you how to set up a Linux