United States$5,000,000+
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Christopher Nolan
5
High performance ISR with Cisco ONE simplicity. Handles heavy traffic reliably.
C1-CISCO4451/K9
Cisco ONE - ISR 4451
FEATURED DEAL
Name:
C1-CISCO4451/K9
- Description:
- Cisco ONE - ISR 4451
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818251162718
- Condition:
- Warranty:
- 3
- List Price:
$30,302.00
- Price:
$10,301.0066% off
Quantity:
1
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C1-CISCO4451/K9 Overview
C1-CISCO4451/K9 is a high-performance modular enterprise router engineered for robust integrated services and secure connectivity in demanding business environments. It features a scalable architecture with flexible power options including redundant AC power supplies, advanced WAN/LAN interfaces supporting modular configurations, and built-in VPN capabilities to ensure secure remote operations.
C1-CISCO4451/K9 delivers superior throughput and reliability with integrated services such as voice, video, and WAN optimization, while offering modular expansion slots and high availability support for seamless redundancy. Its performance, comprehensive firewall features, and versatile use cases make it an ideal solution for enterprise networks requiring dependable and scalable connectivity.
C1-CISCO4451/K9 price is $10,301.00, a 66% saving from the Cisco list price of $30,302.00. C1-CISCO4451/K9 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for C1-CISCO4451/K9 for additional pricing. Browse the full Router Isr 4000 series or explore all Cisco products.
C1-CISCO4451/K9 Specifications
- Product Type
- Enterprise Router
- VPN Support
- IPSec / SSL VPN / GRE / DMVPN / FlexVPN / N/A
- Power Source
- AC Power Supply / Redundant
- Routing Protocols
- OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing
- Broadband
- N/A
- Architecture
- Modular
- WAN Configuration
- Dual WAN
- WAN Ports
- Modular WAN
- LAN Ports
- Modular LAN
- Ethernet Technology
- 10/100/1000
- Wi-Fi Standard
- N/A
- Connectivity Type
- Wired
- Network Protocols
- IPv4, IPv6
- Remote Management
- CLI, SNMP, Telnet, SSH
- Compliance Standards
- FCC, CE
- Wireless Support
- No
- Speed/Capacity
- Gigabit
- Firewall Features
- Yes
- Features
- VPN, VoIP, IPv6 Compatible, Firewall, MPLS
- Use Case
- Enterprise
- Management
- Managed
- Form Factor
- Rack-mount
- Integrated Services
- Voice, Video, WAN Optimization
- High Availability Support
- Supported
- Safety
- N/A
- EMC
- N/A
- Telecom
- N/A
- Throughput Capacity
- 2 Gbps
- QoS Features
- Supported
- Built-in Security Features
- Firewall, Intrusion Prevention, Malware Protection
- Expansion Slots
- EHWIC / NIM
- Modular Slots Available
- 3+ Slots
- Stacking Capability
- No
- 5G Support
- No
- Memory
- 4 GB
- Flash Memory
- 2 GB
- Interface Ports
- RJ-45, SFP, Combo Ports
- Power
- 250 W
- Device Type
- Router
- Product Name
- Cisco 4451 Integrated Services Router
- Height
- 1.75 inches
- Width
- 17.5 inches
- Depth
- 18 inches
- Weight
- 23 lbs
C1-CISCO4451/K9 Use Case
SD-WAN Consolidation at Retail Branches with C1-CISCO4451/K9-ISR 4451
Scenario: A global retail chain deploys the Cisco ISR 4451 with Cisco ONE licensing to replace separate routers, firewalls, and WAN optimizers at 200 branch locations. Outcome: Unified SD-WAN, advanced security, and application-aware routing reduce WAN costs by 35%, accelerate POS and inventory apps by 50%, and cut branch provisioning time from weeks to hours.
Secure Multi-Cloud Edge Gateway for Financial Services Using Cisco ONE on ISR 4451
Scenario: A regional bank integrates its private data center with AWS and Azure via the C1-CISCO4451/K9 ISR 4451 running Cisco ONE, enabling IPsec VPN, SSL inspection, and dynamic path selection. Outcome: Achieves end-to-end encryption meeting PCI-DSS and SOC 2 standards, improves cloud app performance by 30%, and delivers centralized policy management across hybrid environments.
High-Performance VPN and Application Acceleration for Healthcare Networks
Scenario: A multi-site healthcare provider implements Cisco ISR 4451 with Cisco ONE features—DMVPN, QoS, and WAN optimization—to secure patient records and telemedicine traffic. Outcome: Ensures HIPAA-compliant data transfer, boosts EMR and video-conferencing throughput by 45%, and streamlines remote-site deployment with zero-touch provisioning.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
 C1-CISCO4451/K9 |  ISR4461-AX/K9 |  C1-CISCO4331/K9 |  ISR4221-SEC/K9 |  ISR4331/K9 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Modular | Fixed | Modular | Fixed | Modular |
| Broadband | N/A | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall, Intrusion Prevention, Malware Protection | Firewall / Intrusion Prevention | Firewall, Intrusion Prevention, Malware Protection |
| Compliance Standards | FCC, CE | FCC, CE, RoHS | FCC, CE | IEEE 802.3, FCC, CE | FCC, CE, RoHS |
| Connectivity Type | Wired | Wired / Wireless / Ethernet | Wired | Wired | Wired |
| Depth | 18 inches | N/A | 16.5 inches | 11.3 inches | 16.34 inches |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | FCC Compliant | CISPR 22 | N/A |
| Ethernet Technology | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | EHWIC / NIM | EHWIC, NIM | NIM / EHWIC | EHWIC | EHWIC / NIM |
| Features | VPN, VoIP, IPv6 Compatible, Firewall, MPLS | VPN, Voice, Video, IPv6 Compatible, Firewall, POE, Integrated Services | VPN, Voice, Video, Integrated Services, Firewall | VPN / IPv6 Compatible / Firewall | VPN, IPv6 Compatible, Firewall, Integrated Services |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 2 GB | 1 GB | 2 GB | 1 GB | 4 GB |
| Form Factor | Rack-mount | Rack-mount | Rack-mount | Desktop | Rack-mount |
| Height | 1.75 inches | N/A | 1.75 inches | 1.73 inches | 1.75 inches |
| High Availability Support | Supported | Supported | Supported | 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, SFP, Combo Ports | RJ-45, SFP, Combo Ports | RJ-45, SFP | RJ-45 | RJ-45, SFP |
| LAN Ports | Modular LAN | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | Modular LAN |
| Management | Managed | Managed | Managed | Managed | Managed |
| Memory | 4 GB | 4 GB | 4 GB | 1 GB | 4 GB |
| Modular Slots Available | 3+ Slots | 2 Slots | 2 Slots | 1 Slot | 2 Slots |
| Network Protocols | IPv4, IPv6 | OSPF, BGP, EIGRP, RIP, Static Routing | OSPF, BGP, EIGRP, RIP, MPLS | IPv4, IPv6 | IPv4, IPv6, MPLS |
| Power | 250 W | 350 W | 115W | 65W | 150W |
| Power Source | AC Power Supply / Redundant | AC Power Supply with Redundant Option | AC Power Supply / Redundant | AC Power Supply / Redundant | AC Power Supply / Redundant |
| Product Name | Cisco 4451 Integrated Services Router | ISR4461-AX/K9 | Cisco 4331 Integrated Services Router | Cisco ISR 4221-SEC/K9 | Cisco ISR4331/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 | CLI, HTTP, SNMP | Cisco SDM, SSH, Telnet | SSH, Telnet, SNMP | Telnet, SSH, SNMP, NETCONF |
| Routing Protocols | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing | OSPF / BGP / EIGRP / MPLS / IS-IS / RIP / Static Routing | OSPF / BGP / EIGRP / RIP / Static Routing / MPLS | OSPF / BGP / EIGRP / RIP / Static Routing |
| Safety | N/A | N/A | UL Listed | UL, cUL | N/A |
| Speed/Capacity | Gigabit | Gigabit | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | Yes | Yes | No | No |
| Telecom | N/A | N/A | TIA/EIA | FCC Part 15 | N/A |
| Throughput Capacity | 2 Gbps | 1 Gbps | 100 Mbps | 300 Mbps | 100 Mbps |
| Use Case | Enterprise | Enterprise / Branch Office | Enterprise / Branch | Enterprise | Enterprise |
| VPN Support | IPSec / SSL VPN / GRE / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / DMVPN / FlexVPN / N/A | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN | IPSec / SSL VPN / DMVPN / FlexVPN |
| WAN Configuration | Dual WAN | Dual WAN | Dual WAN | Dual WAN | Dual WAN |
| WAN Ports | Modular WAN | 2 WAN | 2 WAN | 2 WAN | 2 WAN |
| Weight | 23 lbs | N/A | 17.6 lbs | 8.6 lbs | 14.3 lbs |
| Wi-Fi Standard | N/A | WiFi 6 (802.11ax) | N/A | N/A | N/A |
| Width | 17.5 inches | N/A | 17.3 inches | 17.2 inches | 17.41 inches |
| Wireless Support | No | Yes | No | No | No |
Reviews & Ratings
M
Matthew Richardson
5
Excellent throughput and scalability. Ideal for large branch or campus use.
P
Paul Henderson
4
Robust platform with strong routing capabilities. Very stable in production.
S
Steven Parker
5
Cisco ONE bundle simplified licensing and deployment. Performance has been impressive.
A
Alan Prescott
4
Enterprise grade router delivering consistent results under load.
Questions & Answers
What is Cisco ONE for ISR 4451?
Cisco ONE for ISR 4451 is a subscription-based software suite that bundles advanced routing, security, and application services for the Cisco ISR 4451 Series, delivering simplified licensing and predictable costs.
What key features are included in Cisco ONE for ISR 4451?
Cisco ONE for ISR 4451 includes advanced security (firewall, IPS), application visibility and control, WAN optimization, and unified communications, all managed under a single, subscription-based license.
How does the Cisco ONE licensing model work?
Cisco ONE uses a term-based subscription model that provides access to software updates, new feature releases, and support services for the duration of the license term.
What are the benefits of Cisco ONE for ISR 4451?
Benefits include simplified license management, seamless feature upgrades, reduced CapEx with predictable OpEx, and continuous access to the latest security and performance enhancements.
Which ISR 4451 platforms are compatible with Cisco ONE?
Cisco ONE is compatible with all Cisco ISR 4451 hardware variants running Cisco IOS XE 16.x or later and supports both physical and virtualized deployment models.
How do I purchase Cisco ONE for ISR 4451?
You can purchase Cisco ONE for ISR 4451 through authorized Cisco partners or directly from Cisco, selecting the desired term length and service level.
Can I upgrade or downgrade my Cisco ONE subscription?
Yes. Cisco ONE subscriptions can be upgraded or downgraded at any renewal cycle or mid-term through your Cisco partner, subject to proration and license availability.
What support and maintenance are included?
Cisco ONE subscriptions include software updates, new feature access, and 24×7 technical support via Cisco SMARTnet, ensuring maximum uptime and security.
How do I renew my Cisco ONE subscription?
Renewals can be handled through your Cisco partner or Cisco account manager. Simply choose the term length and process the renewal before the current subscription expires.
What is the difference between Cisco ONE and traditional licensing?
Cisco ONE consolidates multiple feature licenses into a single subscription with continuous updates, whereas traditional licensing requires separate purchases and manual upgrades per feature.
What SKU corresponds to Cisco ONE for ISR 4451?
The Cisco ONE subscription SKU for the ISR 4451 is C1-CISCO4451/K9, which covers the advanced feature set and support services.
Can I deploy virtual network functions with Cisco ONE?
Yes. Cisco ONE for ISR 4451 supports Cisco’s virtual network functions (VNFs) on the integrated compute platform, enabling flexible service chaining and virtualization.
What performance can I expect with Cisco ONE on ISR 4451?
With Cisco ONE, the ISR 4451 delivers up to 2 Gbps of throughput for routing and security services, optimized by application-aware hardware acceleration.
Does Cisco ONE include security updates?
Yes. Cisco ONE provides continuous security intelligence, threat signature updates, and software patches throughout the subscription term to protect against emerging threats.
How does Cisco ONE simplify license management?
By unifying multiple feature licenses under a single subscription, Cisco ONE reduces procurement complexity, minimizes renewal tasks, and ensures feature availability with one SKU.