http://routerproject.co.uk/
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Welcome to www.routerproject.co.uk the home of the webs best free Cisco router simulator. See the FAQ. This project was arose due to the high cost of Cisco routers and the lack of any quality free Cisco router simulator programs. This project intends to fill that gap and is well on the way to achieving that goal. Please help with testing and provide comments and suggestions, contact me at rhys@routerproject.co.uk Check out the new CCNA exam notes.
zwlaszcza jak na darmowe a co z tym idzie legalne rozwiazanie. Jednak widac ze jush nie wspierane przez autorow "New version coming in the summer of 2003." a szkoda 
Chociaz imho NetVis4 w zupelnosci wystarcza zeby sie przygotowac do ccna 