C891FJ-K9Router

The Cisco C891FJ-K9 is part of the Cisco 890 Series Integrated Services Routers (ISRs), engineered to deliver high-speed, secure, and reliable connectivity for small businesses, remote offices, and enterprise branches. Designed with integrated security, advanced routing, and unified communications, it provides a powerful, all-in-one networking solution.

Equipped with 8 Fast/Gigabit Ethernet LAN ports, 1 Gigabit WAN port, and 1 SFP port, the C891FJ-K9 supports flexible connectivity across wired and fiber environments. Its built-in hardware encryption, VPN support, and firewall protection enable secure site-to-site and remote access connections.

The router runs on Cisco IOS Software, offering features like QoS for voice and video, IPv6 support, dynamic routing protocols (EIGRP, OSPF, BGP), and Cisco Configuration Professional (CCP) for simplified management. It also supports Cisco WAAS Express, NetFlow Lite, and EnergyWise for efficient, intelligent network operations.

Key Technical Specifications

• Model: Cisco C891FJ-K9

• Product Type: Integrated Services Router (ISR)

• WAN Ports: 1 × Gigabit Ethernet, 1 × SFP

• LAN Ports: 8 × Fast/Gigabit Ethernet

• Performance: Up to 25 Mbps encrypted throughput

• Security: Stateful Firewall, VPN, IPS, Zone-Based Firewall

• QoS Support: Yes — for optimized voice and video traffic

• Routing Protocols: RIP, OSPF, EIGRP, BGP, IPv4/IPv6

• Flash Memory: 256 MB

• DRAM: 512 MB

• Form Factor: Desktop/Rackmount (1U)

• Operating System: Cisco IOS

• Use Case: SMBs, enterprise branches, secure remote connectivity

Overview

The Cisco C891FJ-K9 combines routing, switching, security, and network management in a single, compact device. With Gigabit performance, VPN encryption, and Cisco IOS features, it’s an ideal solution for businesses seeking secure and scalable WAN access.