Thanks. Really helpful
Please kindly aswer, what kind of IOS image did you use for router and switches?
I'm using "c3725-adventerprisek9-mz.124-15.T5.bin" for the IOS
Thanks. Did you use real switch or it could be configured in gns3?
I'm using a real switch. QnQ will not work on GNS3 or any current switch emulators
Thank you for this information