GNS3 how to obtain Cisco IOS images

GNS3 emulator software is free, but the related Cisco IOS images you require to use it are not. Cisco owns the copyright on IOS so they can’t be shared freely. You’ll have to purchase them, or get them from someone who has legal access to them.

Links:

https://forum.networklessons.com/t/how-to-prepare-for-cisco-ccnp-r-s/1051/40?u=lagapides

https://forum.networklessons.com/t/ospf-loop-free-alternate-lfa-fast-reroute-frr/2228/39?u=lagapides