Description: 

The Cisco ISR4451-X-V/K9 Integrated Services Router is used in enterprise networking systems to provide secure routing, application services, and Power over Ethernet connectivity for branch and campus networks. Commonly installed in corporate branch offices, retail locations, healthcare facilities, and distributed enterprise environments requiring reliable WAN connectivity and integrated network services. Network administrators and system integrators use this router for infrastructure deployment, branch network expansion, security integration, and replacement of legacy Cisco ISR platforms.

Applications: 

The Cisco ISR4451-X-V/K9 router is commonly deployed in enterprise branch networks where secure and high-performance WAN routing is required alongside integrated services. It is used in corporate offices, retail chains, financial institutions, healthcare networks, and government facilities to support VPN connectivity, secure internet access, unified communications, and application optimization while powering network devices such as IP phones and wireless access points through PoE capabilities.

Technical Specifications:

• Manufacturer: Cisco Systems
• Manufacturer Part Number: ISR4451-X-V/K9
• Product Series: Cisco ISR 4000 Series
• Product Type: Integrated Services Router
• Forwarding Performance: Up to 1–2 Gbps aggregate throughput (performance license dependent)
• Processor: Multi-core CPU architecture
• Memory: Up to 16 GB DRAM supported
• Flash Storage: Up to 8 GB internal flash
• Network Interfaces: Multiple Gigabit Ethernet ports
• PoE Support: Integrated Power over Ethernet capability
• Software Package: AppX Advanced Services license
• Routing Protocols: BGP, OSPF, EIGRP, IS-IS, RIP
• Security Features: Integrated firewall, VPN, IPSec, and threat defense
• Operating System: Cisco IOS XE
• Form Factor: Rack-mountable enterprise router chassis

Common Replacements:

• Cisco ISR4431/K9 Integrated Services Router
• Cisco ISR4461/K9 Integrated Services Router
• Cisco C8300-1N1S-6T Catalyst Edge Router