C2691-advipservicesk9-mz.124-17 _top_ Jun 2026

Cisco IOS filenames are highly structured. Breaking down this string reveals exactly what the software does.

This article provides a deep dive into the filename nomenclature, feature set, hardware compatibility, security implications, and practical use cases for this specific IOS build.

: Full support for BGP (Border Gateway Protocol) , OSPF, EIGRP, and RIPv2.

The advipservicesk9 feature set is among the most comprehensive for the 2691 platform. Here is what you can do with this image:

: Includes the Cisco IOS Firewall and Intrusion Prevention System (IPS) capabilities.