United StatesName:
Added to cart 28 times recently
In stock - Ready to Ship
$7,395.00
$177.0097.6% off
Quantity:
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
CISCO2851-SEC/K9
2851 Security Bundle,Adv Security,128F/512D
TRUSTED, TRIED, PROVEN
Inventory Delivered By
& Verified By
Solutions Powered By
Overview of CISCO2851-SEC/K9 – CISCO2851-SEC/K9 is a fixed-architecture integrated services router designed for enterprise branch offices, delivering flexible power options with an AC power supply and redundant capabilities. It features dual WAN interfaces and four LAN ports, allowing scalable connectivity with modular slot expansion for additional network and voice modules.
Optimized for high security and performance, the router integrates robust VPN support with IPSec, alongside built‐in firewall and intrusion prevention features. Its architecture supports integrated voice, video, and WAN optimization services while delivering throughput suited for demanding enterprise use cases, backed by redundancy and QoS capabilities.
CISCO2851-SEC/K9 price is $177.00, a 97.6% saving from the Cisco list price of $7,395.00. CISCO2851-SEC/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CISCO2851-SEC/K9 for additional pricing. Browse the full Router Isr 2800 series or explore all Cisco products.
In a distributed enterprise deploying CISCO2851-SEC/K9-2851 Security Bundle, Adv Security, 128F/512D at each satellite office, IT teams establish high-performance IPsec VPN tunnels, integrated next-gen firewall and intrusion prevention. This unified edge security reduces management overhead, enforces corporate policies, and delivers sub-millisecond latency for mission-critical applications.
A nationwide retailer uses CISCO2851-SEC/K9-2851 Security Bundle, Adv Security, 128F/512D to isolate point-of-sale networks with advanced deep packet inspection and application control. Continuous threat updates and granular segmentation ensure PCI-DSS compliance, prevent fraud, and maintain uninterrupted customer transactions.
A multi-site healthcare provider implements CISCO2851-SEC/K9-2851 Security Bundle, Adv Security, 128F/512D to encrypt EMR traffic over its WAN, leveraging AES-256 VPN, intrusion prevention and unified threat management. This deployment enforces HIPAA data-protection standards, streamlines audit reporting, and guarantees 24/7 availability for life-critical systems.
To get the detailed certification, please go to the Compliance Center.
 CISCO2851-SEC/K9 |  CISCO2801-HSEC/K9 |  C2851-35UC-VSEC/K9 |  C2811-2SHDSL/K9 |  CISCO2811-SRST/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Fixed | Modular |
| Broadband | N/A | N/A | N/A | DSL | N/A |
| Built-in Security Features | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention / VPN | Firewall / Intrusion Prevention | Firewall / Intrusion Prevention / Malware Protection |
| Compliance Standards | FCC / CE | FCC / IC | FCC, CE, RoHS | FCC / CE | FCC / CE |
| Connectivity Type | Wired | Wired | Wired / Ethernet | Wired | Wired |
| Depth | 16 inches | N/A | 11.2 inches | 17 inches | 14.96 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | FCC, ICES-003 | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100 | 10/100 | 10/100 |
| Expansion Slots | EHWIC / NIM | EHWIC | EHWIC | NIM, EHWIC | NIM |
| Features | VPN / Firewall / IPv6 Compatible | VPN / IPv6 Compatible / Firewall | VPN, Firewall, IPv6 Compatible, Voice, Video, WAN Optimization | VPN / IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 256 MB | 128 MB | 256 MB | N/A | 128 MB |
| Form Factor | Rack-mount | Desktop | Rack-mount | Rack-mount / Desktop | Rack-mount |
| Height | 4.3 inches | N/A | 1.73 inches | 1.75 inches | 1.72 inches |
| High Availability Support | Supported | Not Supported | Supported | Not Supported | Supported |
| Integrated Services | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video / WAN Optimization | Voice / Video | Voice / Video / WAN Optimization |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 / SFP | RJ-45 | RJ-45 |
| LAN Ports | 4 LAN Ports | N/A | 2 LAN Ports | 2 LAN Ports | 2 LAN Ports |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 512 MB | 256 MB | 256 MB | 128 MB | 256 MB |
| Modular Slots Available | 2 Slots | 2 Slots | 2 Slots | 2 Slots | 2 Slots |
| Network Protocols | IPv4, IPv6 | IPv4 / IPv6 | RIP, OSPF, EIGRP, BGP, IS-IS, Static Routing | IPv4 / IPv6 | IPv4 / IPv6 |
| Power | 65 W | 65 W | 85 Watt | 125 W | 80W |
| Power Source | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply / Redundant |
| Product Name | CISCO2851-SEC/K9 | CISCO2801-HSEC/K9 | Cisco 2851 Integrated Services Router - 35UC-VSEC | Cisco 2811 Integrated Services Router - 2SHDSL | CISCO2811-SRST/K9 |
| Product Type | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router | Enterprise Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | CLI, SNMP | Telnet / SSH / SNMP | Telnet, SSH, SNMP, Cisco SDM | Telnet / SSH | SSH / Telnet / SNMP |
| Routing Protocols | OSPF / BGP / EIGRP / RIP | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | N/A | UL/cUL, CE | N/A |
| Speed/Capacity | N/A | N/A | N/A | N/A | N/A |
| Stacking Capability | No | No | No | No | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.025 Gbps | 0.025 Gbps | 0.035 Gbps | 0.025 Gbps | 0.025 Gbps |
| Use Case | Enterprise | Business / Enterprise | Enterprise / Business | Enterprise | Enterprise / Small Business |
| VPN Support | IPSec | IPSec / SSL VPN | IPSec / SSL VPN | IPSec | IPSec |
| WAN Configuration | WAN | WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | 2 WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 25 lbs | N/A | 17.6 lbs | 17 lbs | 21.52 lbs |
| Wi-Fi Standard | N/A | N/A | N/A | N/A | N/A |
| Width | 17.5 inches | N/A | 17.27 inches | 19 inches | 17.24 inches |
| Wireless Support | No | No | No | No | No |
Cisco 2851 Security Bundle ensures advanced security and reliable UC. Perfect for medium offices requiring stable voice and secure communications.
Durable and predictable. Maintains secure network operations with minimal downtime and consistent voice performance.
Easy to deploy and maintain. Provides high-performing UC, voice, and secure network operations.
Reliable Cisco solution. Supports multiple endpoints efficiently while maintaining secure communications and UC.
High-performing and robust. Ideal for offices needing stable voice, UC, and advanced security features.
The Cisco 2851 Security Bundle (CISCO2851-SEC/K9) is a modular Integrated Services Router with an Advanced Security license, 128 MB Flash, 512 MB DRAM, designed for small to medium branch networks.
The Cisco 2851 Security Bundle includes a stateful firewall, IPSec VPN, intrusion prevention, URL filtering, antivirus, antispam and AAA services—all managed via Cisco IOS Software.
The Cisco 2851 delivers up to 85 Mbps of aggregated throughput with security enabled and forwards up to 256,000 packets per second, ensuring high-performance routing and protection.
The Cisco 2851 supports up to 250 simultaneous IPSec VPN tunnels, offering secure site-to-site and remote-access connectivity for branch offices and mobile users.