GNS3 continues to get better every release. For those who haven't heard, GNS3 is Cisco network simulation emulation software that allows you to run the REAL IOS in a lab environment between multiple simulated emulated devices. This release now allows you to emulate 1700 routers and PIX firewalls! Killer.

There's plenty of talk that GNS3 will soon support virtual PCs in the lab environment.

I also stumbled upon another blog who has some great reading / tutorials on setting up and configuring GNS3: http://www.blindhog.net/. Kudos to all the video tutorials on the site!

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