Cisco ISR4351-SEC/K9 Router – Secure, High-Performance Branch Edge

Equipment Overview

The Cisco ISR 4351-SEC/K9 is a modular enterprise router from the ISR 4000 series, delivered as a Security Bundle with the SEC license pre-installed. It is designed for medium to large branch offices and enterprise edge deployments, handling WAN aggregation, inter-VLAN routing, and secure connectivity. The platform supports integrated services such as firewall, VPN, and advanced threat control without requiring separate appliances. Its modular architecture allows flexible expansion via network interface modules for evolving network demands.

Main Parameters

• Model: ISR4351-SEC/K9
• Bundle Type: Sec bundle with SEC license
• Form Factor: Rack-mountable modular router
• Chassis: Cisco ISR 4351
• Security License: Included (SEC)
• Category: Network equipment, routers

Key Advantages

This model is selected for enterprise projects due to its integrated security license, which eliminates additional licensing costs at deployment. The modular design supports higher port density and service flexibility compared to fixed-configuration routers. It provides a scalable platform for growing branch environments requiring consistent performance and secure WAN connectivity.

Compatibility & Integration

The router integrates with standard enterprise networking protocols and Cisco IOS-based management systems. It supports a range of Cisco interface modules, enabling connectivity to existing LAN/WAN infrastructure. The SEC license enables security features that align with common enterprise compliance and policy requirements.