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C2691-advipservicesk9-mz.124-17.image Page

The string "C2691-advipservicesk9-mz.124-17.image" refers to a specific Cisco IOS (Internetworking Operating System) software image.

Cisco IOS naming follows a specific convention that reveals its features and version: c2691: The hardware platform (Cisco 2691 Router). C2691-advipservicesk9-mz.124-17.image

) including IPsec VPN, 3DES/AES, and Cisco IOS Firewall/IPS features. The string "C2691-advipservicesk9-mz

  • Advanced IP routing: OSPF, EIGRP, BGP, IS-IS, and RIP (v1 & v2)
  • Multicast support: PIM, IGMP, and MSDP
  • Quality of Service (QoS): Class-based weighted fair queuing (CBWFQ), low latency queuing (LLQ), traffic shaping, policing
  • IP Services: NAT, DHCP server/relay, HSRP, VRRP, GLBP
  • MPLS: Layer 3 MPLS VPN support (crucial for service provider labs)
  • Security features: Zone-based firewall (ZBFW), IPS, control plane policing (CoPP)
  • VPN technologies: GRE, IPsec with 3DES/AES (via the k9 encryption)

1. Hardware Platform: C2691

  • Device: Cisco 2691 Integrated Services Router.
  • Series: This is part of the Cisco 2600XM series (though labeled 2691, it is physically distinct from the older 2600 series, offering higher performance).
  • Implication: This image will not boot on other platforms (like a 2800 or a standard 2610). It is compiled specifically for the hardware architecture of the 2691.

Displays IOS version, platform, uptime, memory, and feature set. Advanced IP routing : OSPF, EIGRP, BGP, IS-IS,

Once the transfer hit 100%, the router rebooted. The cooling fans roared to life, and finally, the glorious prompt appeared:

Routing Protocols: Supports standard protocols like OSPF, EIGRP, BGP, and RIPv2.

Despite its age, the 124-17 image is prized for its stability and resource efficiency.