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December 6, 2007
IOS Emulation Just Got Better
Quite some time ago, I wrote an article on the Dynagen/Dynamips system that has been developed to emulate (not simulate) IOS routers using a PC. Back when I originally wrote this update, you could only emulate a 7200 router and it took quite a bit of tweaking & tuning text files to make it happen. Things have definitely changed
Kudos to InternetworkExpert for putting together a pre-built Dynagen/Dynamips lab that emulates 9 different 3640 routers connected together in an impressive topology. Sure, they've created this environment to map to their lab scenarios which is what their business is built on; however, they've been kind enough to allow anyone to download this pre-built IOS emulation package for free.
Update: Thanks MB for also adding GNS3 (http://www.gns3.net) to the Dynamips lineup. This is the best package for IOS emulation yet!
Yes, it may still take some reading of documents to figure out how to connect & setup, but most of the legwork has been done for you. With a little time, you can build a fairly massive Cisco lab environment with out spending a penny on lab gear. Here's the link for the download and documentation:
http://www.internetworkexpert.com/resources/iosonpc.htm
Have fun!
Posted by JC at December 6, 2007 8:03 AM
Comments
I've been looking at Dynamips/Dynagen for a while but had never taken the plunge to learn the steps needed to actually get it up and running until i found GNS3. GNS3 is a GUI that will let you drag and drop routers in to your network and add links wherever you need them. if you want to try Dynamips/Dynagen without having to learn the configs etc.. then GNS3 might be the way to go.... http://www.gns3.net.
Posted by: mb at December 6, 2007 12:59 PM
SWEET! Thanks MB!
Posted by: JC at December 6, 2007 2:44 PM
i just use GNS3...drag and drop the devices to build your topology, and then double click the router and you are in the console.
GNS3 baby.
Posted by: Emilio at December 6, 2007 6:08 PM
Dynamips is the canines testicles. I'd like to see a forum topic based on this, because as great as it is, it can be a bitch to get it working properly, especially if you combine it with PEMU, the pix emulator.
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