Cisco CISCO1921-SEC/K9 C1921 Security Bundle
Cisco CISCO1921-SEC/K9 C1921 Security Bundle is a modular enterprise router designed for secure branch-office and small-business networking. It features 2 Gigabit Ethernet interfaces, 512 MB DRAM, 256 MB Flash memory, and a Security License PAK, providing a flexible platform for IP routing and enhanced network security deployments.
Description
The Cisco CISCO1921-SEC/K9 is a Cisco 1921 Series Integrated Services Router configuration designed for branch offices, small and medium-sized businesses, and enterprise remote-site deployments requiring integrated routing and security capabilities.
This configuration combines 2 Gigabit Ethernet interfaces, 512 MB DRAM, 256 MB Flash memory, and a Security License PAK, providing a flexible foundation for secure IP networking and WAN connectivity.
The modular architecture of the Cisco 1921 allows supported expansion modules to be installed, providing additional flexibility for WAN and network-interface requirements.
Key Features
- Cisco C1921 Integrated Services Router
- Part Number: CISCO1921-SEC/K9
- 2 × Gigabit Ethernet interfaces
- 512 MB DRAM
- 256 MB Flash memory
- Includes Security License PAK
- Modular architecture
- Support for compatible EHWIC expansion modules
- Cisco IOS-based networking platform
- Designed for branch-office and remote-site deployments
- Suitable for small and medium-sized business networks
- Supports IP routing and security features according to the installed IOS release and license
Dual Gigabit Ethernet Connectivity
The Cisco 1921 provides two integrated Gigabit Ethernet interfaces, offering high-speed Ethernet connectivity for LAN and network infrastructure connections.
The interfaces can be used to connect the router to:
- LAN switches
- Branch-office networks
- Enterprise infrastructure
- WAN Ethernet services
- Firewalls and security appliances
- Other network equipment
Gigabit Ethernet provides a significant performance improvement over older Fast Ethernet interfaces, making the C1921 suitable for modern branch-network requirements.
Security License Configuration
The CISCO1921-SEC/K9 configuration includes a Security License PAK, enabling the router to support applicable Cisco security functionality according to the installed software version and licensing configuration.
Security capabilities can include supported technologies for protecting branch and WAN connectivity. The exact available features depend on the Cisco IOS release and license installed on the individual router.
This configuration is therefore suited to organizations looking for a Cisco branch router with a security-oriented software configuration.
512 MB DRAM
The router includes 512 MB of DRAM, providing memory resources for Cisco IOS, routing operations, and supported network services.
The memory capacity should be considered when selecting the appropriate IOS software release and feature configuration.
256 MB Flash Memory
The specified configuration includes 256 MB of Flash memory.
Flash storage is used by Cisco IOS-based routers to store operating-system images and other software-related files.
The available Flash capacity provides space for the installed IOS image and associated files, subject to the specific software release and configuration.
Modular Expansion
The Cisco 1921 is designed as a modular routing platform.
Compatible EHWIC modules can be installed to provide additional interface and connectivity capabilities, depending on the deployment requirements and module compatibility.
This provides greater flexibility than a purely fixed-interface router and allows organizations to adapt the platform to different network environments.
Branch Office Security
The CISCO1921-SEC/K9 is particularly suitable for branch-office environments where routing and security requirements need to be addressed on the same platform.
Typical applications include:
- Secure branch-office connectivity
- Remote-site routing
- Small-business networks
- Enterprise branch networks
- WAN connectivity
- VPN-related deployments where supported
- Network infrastructure upgrades
- Cisco training and laboratory environments
Cisco IOS Platform
The C1921 operates using Cisco IOS, providing a familiar command-line and management environment for network administrators.
The Security License PAK enables applicable security functionality when the appropriate Cisco IOS software and licensing configuration are present.
Because Cisco software capabilities can vary by IOS release and license, the exact feature set should be verified against the software installed on the individual unit.
Flexible Deployment
The combination of dual Gigabit Ethernet interfaces, modular expansion, additional Flash memory, and the Security License configuration makes the CISCO1921-SEC/K9 suitable for a range of professional network deployments.
It can be positioned between a branch LAN and WAN infrastructure while providing routing and supported security services.
Typical Applications
Branch Offices
Provide routing and security capabilities for remote corporate locations.
Small and Medium Businesses
Offer a centralized platform for LAN, WAN, and security requirements.
Enterprise Remote Sites
Integrate branch networks into larger Cisco enterprise architectures.
WAN Networks
Provide routing between local Ethernet networks and compatible WAN interfaces.
Network Laboratories
Useful for Cisco IOS routing and security training.
Product Benefits
Dual Gigabit Ethernet: Provides two high-speed Ethernet interfaces for LAN and network connectivity.
Security-Enabled Configuration: Includes a Security License PAK for applicable Cisco security features.
High Memory Capacity: 512 MB DRAM supports the router’s operating system and network services.
256 MB Flash: Provides storage for Cisco IOS software and associated files.
Modular Architecture: Supports compatible expansion modules for additional connectivity options.
Professional Cisco Platform: Designed for business, branch, and enterprise network environments.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Cisco |
| Series | Cisco 1900 Series |
| Model | C1921 |
| Part Number | CISCO1921-SEC/K9 |
| Product Type | Security-Enabled Modular Router |
| Gigabit Ethernet | 2 × GE |
| DRAM | 512 MB |
| Flash Memory | 256 MB |
| Security License | Security License PAK |
| Expansion | Compatible EHWIC modules |
| Operating Platform | Cisco IOS |
| Primary Application | Secure Branch & WAN Routing |
| Target Environment | Enterprise / SMB / Branch Office |
Compatibility and Licensing Note
The Security License PAK is an important part of this configuration. Security functionality is dependent on the applicable Cisco IOS release and software licensing.
Customers deploying the unit should verify the installed IOS image and license status to confirm the exact security features available.
Similarly, any EHWIC expansion module should be checked for compatibility with the C1921 platform before installation.
Product Summary
The Cisco CISCO1921-SEC/K9 C1921 Security Bundle provides a professional modular routing platform for branch offices and small-to-medium enterprise networks. With 2 Gigabit Ethernet interfaces, 512 MB DRAM, 256 MB Flash memory, and a Security License PAK, it is designed to support IP routing and applicable security services in a flexible Cisco networking environment.
Its modular architecture allows compatible expansion modules to extend connectivity, while the security-oriented configuration makes it a suitable choice for organizations requiring routing and network-security capabilities at the branch or remote-site level.
Product Category: Networking → Routers → Security & Modular Routers
Brand: Cisco
Series: Cisco 1900 Series
Model: C1921
Part Number: CISCO1921-SEC/K9
Ethernet: 2 × Gigabit Ethernet
DRAM: 512 MB
Flash: 256 MB
License: Security License PAK
Expansion: EHWIC
Primary Use: Secure Branch / WAN Routing
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