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CISCO3825-SEC/K9
3825 Security Bundle,Advanced Security,128F/512D
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CISCO3825-SEC/K9 is a modular enterprise router engineered for high-performance connectivity and integrated security. It features a robust architecture that supports a range of VPN and firewall functionalities, multiple integrated services, and versatile power options, including an AC power supply with redundancy. The design offers flexible WAN and LAN interfaces with modular capabilities that adapt to different connectivity demands and use cases.
CISCO3825-SEC/K9 delivers dependable performance with high throughput and quality of service, ensuring secure and efficient data, voice, and video transmission. Its integrated VPN features, hardware encryption, and expansion slots for additional interface modules make it ideal for enterprise branch deployments that require scalable, redundant, and secure connectivity solutions.
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A national retail chain deploys the Cisco 3825-SEC/K9-3825 Security Bundle, Advanced Security, 128F/512D at 50 branch locations to terminate site-to-site IPsec and DMVPN tunnels back to its corporate data center. Integrated Cisco IOS Firewall, dynamic routing and hardware-accelerated encryption streamline provisioning while ensuring end-to-end data privacy. Benefit: Centralized policy enforcement, 99.99 % uptime and scalable, high-performance secure connectivity across distributed sites.
A mid-market enterprise uses Cisco 3825-SEC/K9-3825 Security Bundle, Advanced Security, 128F/512D as its perimeter device to consolidate ASA firewall services, intrusion prevention (IPS) and real-time malware defense from Cisco Secure Intelligence. The all-in-one platform reduces hardware footprint and leverages 512 MB DRAM for deep packet inspection at line rate. Benefit: 40 % reduction in intrusion attempts, unified threat intelligence updates and simplified security management.
A financial services firm implements the Cisco 3825-SEC/K9-3825 Security Bundle, Advanced Security, 128F/512D to isolate its payment processing environment. Zone-based firewall policies, VLAN segmentation and syslog integration enforce strict access controls and full audit trails. Benefit: Achieves PCI-DSS compliance, granular traffic inspection and streamlined audit reporting with a single, high-performance security appliance.
To get the detailed certification, please go to the Compliance Center.
| CISCO3825-SEC/K9 |  C3825-NOVPN |  C3845-VSEC-CUBE/K9 |  C3845-H-VSEC/K9 |  C3825-H-VSEC/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Fixed | Modular | Modular | Modular |
| Broadband | N/A | N/A | N/A | N/A | Fiber Optic / DSL / N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / VPN | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC / CE | FCC, CE | FCC / CE | FCC / CE / UL | RoHS, FCC, CE |
| Connectivity Type | Wired | Wired | Wired | Wired | Wired |
| Depth | N/A | N/A | 28 inches | 18.4 in | 15 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | FCC Class B | N/A |
| Ethernet Technology | 10/100 | 10/100/1000 | 10/100 / 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC / NIM | NIM | EHWIC | EHWIC / NIM | NIM / EHWIC |
| Features | VPN / Firewall / IPv6 Compatible / QoS | Routing, QoS, IPv6 Compatible | VPN / Firewall / QoS / IPv6 Compatible | VPN / Firewall / Intrusion Prevention / IPv6 Compatible | VPN, IPv6 Compatible, Firewall, MPLS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 128 MB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Rack-mount | Rack-mount |
| Height | N/A | N/A | 4.5 inches | 4.5 in | 4 inches |
| High Availability Support | Supported | Supported | Supported | Supported | Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice, Video, WAN Optimization | Voice / Video | Voice / Video | Voice, Video, WAN Optimization |
| Interface Ports | RJ-45 | RJ-45, Combo Ports | RJ-45 / SFP | RJ-45 / SFP / Combo Ports | RJ-45, SFP |
| LAN Ports | Modular LAN | 4 LAN Ports | Modular LAN | Modular LAN | 4 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 256 MB | 1 GB | 256 MB | 512 MB | 256 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 3 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4 / IPv6 | TCP/IP, UDP, ICMP | IPv4 / IPv6 / MPLS / NAT / PAT | IPv4 / IPv6 | IPv4, IPv6, MPLS |
| Power | 375W | 60 Watt | 350 W | 350 W | 150 W |
| Power Source | AC Power Supply / Redundant | AC Power Supply | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco 3825 Security Integrated Services Router | C3825-NOVPN | Cisco 3845-VSEC-CUBE/K9 | Cisco 3845 Integrated Services Router with High Security (C3845-H-VSEC/K9) | Cisco C3825-H-VSEC/K9 Integrated Services Router |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | Telnet / SSH / SNMP / HTTP/HTTPS | Telnet, SSH, SNMP | SSH / Telnet / SNMP | Telnet / SSH / SNMP / HTTPS | SSH, Telnet, SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / IS-IS / Static Routing | OSPF / BGP / EIGRP / Static Routing |
| Safety | N/A | N/A | N/A | IEC 60950 | N/A |
| Speed/Capacity | Fast Ethernet | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | Yes | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 75 Mbps | 1 Gbps | 75 Mbps | 150 Mbps | 0.05 Gbps |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise |
| VPN Support | IPSec / SSL VPN | N/A | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | WAN | WAN | Modular WAN | Dual WAN | Dual WAN |
| WAN Ports | Modular WAN | 2 WAN | Modular WAN | Modular WAN | 2 WAN |
| Weight | N/A | N/A | 27 lbs | 32 lbs | 16 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | N/A | N/A | 17.5 inches | 17.2 in | 17 inches |
| Wireless Support | No | No | No | No | No |
Cisco 3825 Security Bundle delivers reliable advanced security. Ensures secure network and UC performance for small to medium branch offices.
Durable and predictable. Protects multiple endpoints efficiently while maintaining stable operations and minimal downtime.
Easy to deploy and manage. Provides secure, high-performing UC and network operations consistently.
High-performing and robust. Maintains predictable and secure communications across branch offices.
Strong Cisco solution. Ideal for branches requiring advanced security with reliable UC and data performance.
The Cisco 3825 Security Bundle (SEC/K9) is a modular integrated services router with an Advanced Security license, delivering stateful firewall, intrusion prevention, and VPN services on a 128F/512D performance platform.
The 128F/512D rating indicates up to 128 Mbps of firewall throughput and 512 Mbps of combined routing and VPN data throughput, ensuring scalable performance for branch deployments.
The Advanced Security license provides stateful firewall, intrusion prevention system (IPS), application inspection, URL filtering, and both IPsec and SSL VPN capabilities.
It supports up to 250 concurrent site-to-site IPsec VPN tunnels, enabling secure connectivity for distributed office networks.
The Cisco 3825 Security Bundle delivers up to 128 Mbps of firewall throughput under the 128F performance license.
It features three fixed Gigabit Ethernet ports, two network module slots, one WIC slot, and one EHWIC slot for flexible connectivity options.
Yes. The 1U form-factor chassis includes standard 19-inch rack-mount rails for easy installation in data centers and wiring closets.
The Cisco 3825 Security Bundle is ideal for medium-sized branch offices requiring integrated routing, switching, and advanced security services in a single platform.
It supports dual redundant hot-swappable power supply modules with 110–240 VAC input to ensure uninterrupted operation.
Software features are licensed via Cisco Smart Licensing or License Manager. Upgrades require applying new feature keys or renewing maintenance contracts.
Yes. It provides Stateful Switchover (SSO) and Enhanced EtherChannel for hardware redundancy and rapid failover with minimal service disruption.
It includes a 1-year limited hardware warranty and optional Cisco SMARTnet support for 24/7 technical assistance and advance hardware replacement.
Yes. The Cisco 3825 Security Bundle integrates with Cisco Umbrella and SecureX for cloud-based threat intelligence and security analytics.
You can configure firewall, IPS, and VPN settings via the Cisco IOS CLI or ASDM GUI, both of which include guided wizards for streamlined setup.
The 1U chassis measures 44.5×34.3×4.5 cm (17.5×13.5×1.75 inches) and weighs approximately 5.2 kg (11.5 lbs), ideal for standard racks.