Cisco ISR4351-AX/K9 Enterprise Integrated Services Router

Product Description

The Cisco ISR4351-AX/K9 is a modular enterprise router from the Cisco ISR 4000 series, delivered as an AX bundle with Application Experience (APP) and Security (SEC) software licenses pre-enabled. This platform is designed for mid-size to large enterprise branches and WAN aggregation points, providing integrated routing, security, and application visibility in a single chassis. The router supports high-density modular interfaces via NIM slots, making it suitable for complex, multi-service network deployments.

Technical Specifications

• Model / MPN: ISR4351-AX/K9
• Brand: Cisco
• Bundle Type: AX Bundle with APP and SEC licenses
• Series: Cisco ISR 4000
• Form Factor: Modular router chassis
• Interface Slots: NIM (Network Interface Module) slots for modular WAN/LAN connectivity
• Software Licenses: Application Experience (APP) and Security (SEC) included
• Target Deployment: Enterprise branch and WAN edge

Design Features

• Modular architecture supports a range of NIM modules for flexible connectivity options.
• Integrated security and application processing capabilities via included APP and SEC licenses.
• High-performance routing engine designed for concurrent services (routing, security, QoS).
• Suitable for dual-purpose roles: WAN aggregation and branch office routing.
• Factory-bundled licensing simplifies ordering and deployment.

Application Area

The Cisco ISR4351-AX/K9 is deployed in enterprise branch offices, regional headquarters, and WAN edge locations requiring integrated security and application optimization. It serves as a primary WAN router for connecting remote sites to central data centers or cloud services, handling traffic from multiple VLANs, VPN tunnels, and critical business applications. The included APP and SEC licenses enable deep packet inspection, firewall, and application visibility without additional hardware.