Cisco ISR4331-SEC/K9 is a Cisco ISR 4331 Integrated Services Router Security Bundle
Cisco ISR4331-SEC/K9 – ISR 4331 Security Bundle is an enterprise-grade Integrated Services Router designed for secure branch-office and WAN networking. The bundle includes the Cisco ISR 4331 with a Security (SEC) license, providing a flexible platform for routing, VPN connectivity, network security, and integrated branch services.
Description
The Cisco ISR4331-SEC/K9 is a Cisco ISR 4331 Integrated Services Router Security Bundle designed for organizations that require secure, reliable, and flexible connectivity across branch offices and distributed enterprise networks.
As part of the Cisco Integrated Services Router 4000 Series, the ISR 4331 provides an integrated platform for routing, WAN connectivity, security, and other network services. The SEC license included with this configuration enables the router to support Cisco’s applicable security feature set, making it well suited for secure enterprise networking deployments.
Key Features
- Brand: Cisco
- Model: ISR 4331
- Part Number: ISR4331-SEC/K9
- Series: Cisco ISR 4000
- Product Type: Integrated Services Router
- Configuration: Security Bundle
- License: SEC Security License Included
- Designed for enterprise branch networking
- Supports secure WAN connectivity
- Suitable for VPN deployments
- Integrated routing and security capabilities
- Modular architecture for enterprise deployments
- Designed for distributed and branch-office environments
Integrated Routing & Security
The ISR4331-SEC/K9 combines enterprise routing with supported security functionality on a single platform.
This enables organizations to deploy a consolidated branch networking solution for functions such as:
- IP routing
- WAN connectivity
- Secure VPN connectivity
- Network security
- Traffic management
- Branch-to-headquarters connectivity
- Internet-edge networking
The exact features available depend on the Cisco IOS XE software version, installed licenses, hardware configuration, and supported feature set.
SEC Security License
The SEC designation identifies this model as a Security Bundle with the SEC license included.
This configuration is intended for organizations requiring enhanced security capabilities as part of their branch-router deployment.
The security-enabled platform can be used as part of architectures supporting:
- Site-to-site VPNs
- Secure remote connectivity
- Branch-to-data-center connections
- Secure WAN infrastructure
- Enterprise network segmentation and policy enforcement
Enterprise Branch Networking
The Cisco ISR 4331 is designed for modern enterprise branch environments where multiple network services need to be delivered from a single platform.
It can be deployed in:
- Corporate branch offices
- Regional offices
- Distributed enterprise networks
- Retail locations
- Financial institutions
- Government offices
- Education networks
- Remote enterprise sites
Secure WAN Connectivity
The ISR4331-SEC/K9 provides a flexible platform for connecting branch locations to corporate headquarters, data centers, cloud environments, and other remote sites.
With appropriate configuration and supported licensing, the router can provide secure WAN connectivity and VPN services while maintaining centralized enterprise routing policies.
Modular and Flexible Architecture
The Cisco ISR 4000 Series uses a modular architecture that enables organizations to adapt their network infrastructure as requirements evolve.
This makes the ISR 4331 suitable for organizations that need a router platform capable of supporting additional interfaces, services, and network functions over time.
Network Management
Cisco ISR platforms can be integrated into enterprise monitoring and management environments, helping network administrators maintain visibility and control across distributed infrastructure.
Management capabilities depend on the deployed Cisco IOS XE software, licenses, and management tools.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Cisco |
| Product Family | ISR 4000 Series |
| Model | ISR 4331 |
| Part Number | ISR4331-SEC/K9 |
| Product Type | Integrated Services Router |
| Bundle | Security (SEC) Bundle |
| Security License | SEC License Included |
| Architecture | Modular Enterprise Router |
| Primary Deployment | Branch Office / WAN |
| Primary Functions | Routing, WAN & Security |
| VPN | Supported with appropriate configuration/licensing |
| Software Platform | Cisco IOS XE |
Ideal Applications
Enterprise Branch Offices
Connect users, applications, and devices at remote offices to centralized corporate infrastructure.
Secure WAN
Provide routing and security services for enterprise WAN environments.
VPN Connectivity
Support secure site-to-site and remote-access architectures using supported Cisco technologies.
Network Infrastructure
Deploy as an integrated branch router for routing, security, and WAN services.
Distributed Organizations
Suitable for organizations operating multiple geographically distributed locations.
Key Benefits
Security Bundle: Includes the SEC security license for supported Cisco security features.
Integrated Services: Combines routing and security capabilities in a single enterprise platform.
Enterprise-Grade Platform: Designed for professional branch and WAN environments.
VPN Ready: Suitable for supported VPN deployments and secure inter-site connectivity.
Flexible Architecture: Modular design supports changing enterprise networking requirements.
Centralized Management: Can integrate with Cisco enterprise management and monitoring solutions.
Product Summary
The Cisco ISR4331-SEC/K9 Cisco ISR 4331 Security Bundle is a flexible enterprise router designed to provide secure branch-office, WAN, and distributed-network connectivity.
With the SEC license included, the ISR 4331 provides a platform for routing, VPN connectivity, and supported security services. Its modular architecture makes it suitable for organizations looking to consolidate networking and security functions while maintaining flexibility for future infrastructure requirements.



