dynamips

Dynamips may seem to be a bygone technology for the present day, but it’s still a great solution for learning routing concepts on emulated Cisco router platforms. Prerequisites GNS3 on Apple Silicon GNS3 client Steps Open your favorite terminal emulator. Create the IOS directory. mkdir -p ~/GNS3/images/IOS Copy the Cisco image files to the IOS directory. For my example, I will copy the c3640-jk9o3s-mz.124-16a.bin and c7200-adventerprisek9-mz.124-24.T5.bin image files from my Downloads directory....

Before we work our way through the steps, I’ll start by pointing out GNS3 server has the following constraints when running solely on Apple Silicon: Lack of Linux KVM for x86_64 virtualized guests Slight performance penalty with emulated x86_64 Linux binaries (Rosetta ) GNS3 is viable even with these limitations. I’m simply amazed at the stability and performance considering the Linux operating system and virtual network devices are running on a different CPU architecture....

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 the 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....