Thanks very much to the author Chris (Christophe Filot) for dynamips. Which is very helpfull preparing for the lab.
Mostly bugfixes, but also now with ISL trunking support.
GNS3 is also a nice tool for drag and drop a topology with the needed devices and IOS versions. It`a still a little bugy sometime, but if you can live with that, give it a try. It`s really nice.
Here are the binaries:
Download x86 Linux:
Download x86_64 Bit Linux:
Download Win32 Version: