Because the Cisco 2691 is an older "Dynamips" platform, this image is widely used for CCNA/CCNP labs. How to Add to GNS3: Cisco 2691 - GNS3
If you load this image, the router gains the ability to act as: C2691-advipservicesk9-mz.124-17.image
The IOS version. This is Mainline Release 12.4, rebuild 17. Key Features and Capabilities Because the Cisco 2691 is an older "Dynamips"
is a historical artifact of a robust networking era. For production use in 2025, the answer is no – the security risks, throughput limitations, and lack of support make it obsolete for business-critical networks. C2691-advipservicesk9-mz.124-17.image
Release 12.4 was a mainstream IOS train known for stability and feature maturity. Version includes:
The C2691-advipservicesk9-mz.124-17.image provides a range of features and functionalities for the Cisco 2691 router, including: