iol

The content in this post is intended for educational and informational purposes only. All software rights belong to their respective owners. Cisco includes the IOS on Linux (IOL) images available with the Cisco Modeling Labs (CML) Free Tier . Because IOL runs modern Cisco IOS-XE as a native Linux binary, it offers a lightweight, resource-friendly alternative for network emulation. This post will guide you through the process of creating Cisco IOL container images using Containerlab on macOS. ...

Containerlab is gaining traction on macOS, driven by the growing availability of ARM64-based NOS container images. The following Containerlab kinds work excellent with macOS on Apple Silicon: Nokia SR Linux Arista cEOS Cisco IOL with Rosetta Prerequisites Mac computer with Apple silicon macOS 14.0 or later Git uv Steps Download OrbStack and open it. Open your favorite terminal emulator. We will work from the command line for the following steps. ...

The content in this post is intended for educational and informational purposes only. All software rights belong to their respective owners. I’ve read quite a few tutorials on Netmiko with GNS3, but none of them show you how to directly utilize the console connection as the management interface for Cisco devices. In addition to the CiscoIosSSH driver, Kirk Byers also implemented the CiscoIosTelnet driver for establishing a connection to a Cisco device. This is perfect for GNS3 because the default console connection is essentially a Telnet connection without authentication. ...

The content in this post is intended for educational and informational purposes only. All software rights belong to their respective owners. Cisco includes the IOS on Linux (IOL) images available with the Cisco Modeling Labs (CML) Free Tier . Because IOL runs modern Cisco IOS-XE as a native Linux binary, it offers a lightweight, resource-friendly alternative for network emulation. This post will guide you through the process of adding Cisco IOL devices using GNS3 on 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. ...