value. This prevents the emulated router from consuming 100% of your computer's CPU. Decompression : If GNS3 asks to decompress the image, choose . It will run faster and more reliably. Spiceworks Community Essential Commands
: Another specialized article on NIL.uniza.sk details configuring "Lock-and-Key" dynamic ACLs using this era of Cisco IOS, providing a practical security laboratory example. Image Identification Breakdown C2691-advipservicesk9-mz.124-17.image
| Property | Value | | :--- | :--- | | | Cisco 2691 | | IOS Version | 12.4(17) | | Feature Set | Advanced IP Services + Crypto | | Encryption | 3DES, AES | | Min RAM | 128 MB | | Min Flash | 32 MB | | Best Use | Lab, CCNP/CCIE routing, MPLS, VPN | | Production | No (EOL, insecure) | It will run faster and more reliably
: A technical tutorial on NIL.uniza.sk uses the closely related 12.4(17) series images to demonstrate advanced routing configurations, such as MD5 authentication for RIPv2, specifically within GNS3 topologies. such as MD5 authentication for RIPv2
. The "k9" indicates support for strong 128-bit/256-bit payload encryption (3DES/AES). Execution Location (mz): The image runs from RAM ("m") and is compressed ("z"). Version (12.4-17):
: Essential for GNS3/EVE-NG to prevent the emulator from consuming 100% of your host CPU. A common value for this version is 0x60a48cb8 .