: Accessing downloads directly from Cisco with a valid support agreement.
To use the Cisco 3725 image in GNS3, you must first obtain a legitimate IOS image file from the Cisco Software Central navigator. While GNS3 provides the appliance templates to help configure these devices, it does provide the actual copyrighted IOS software. Legally Acquiring the Image cisco 3725 image for gns3 download
: Extracting the IOS image from a Cisco 3725 router you physically own. : Accessing downloads directly from Cisco with a
: Purchasing a Cisco Modeling Labs license (formerly VIRL) provides access to various legal images for labbing. Why Use the Cisco 3725 in GNS3? Legally Acquiring the Image : Extracting the IOS
Cisco IOS images are proprietary and copyrighted. You can legally obtain the or similar versions through:
The 3725 is a favorite for network students because it is lightweight yet highly versatile. Cisco IOS images for Dynamips - GNS3 Documentation