gns: Cisco Network Simulator

[Jonathan Simms]

Hi everyone,

I came across this pretty nifty little thing- it is for Windows, Linux, and Mac OS X- a Cisco Network Simulator. You must supply your own copy of Cisco IOS, so that's kind of a bummer, but it also means that it is a more real to life simulator than Packet Tracer, which uses a very scaled back version of IOS. So if you can get your mitts on a copy of IOS it just might prove rather educational.

Here's a link to the site: http://www.gns3.net/
Here are some screenshots: http://www.gns3.net/screenshots

You can even capture traffic with Wireshark!