Cisco ISR 4451
  • Cisco ISR 4451
  • Cisco ISR 4451
Cisco 4000 Family Integrated Services Routers (ISRs) form an intelligent WAN platform that delivers the performance, security, and convergence capabilities that today’s branch offices need.



The Cisco 4000 Family Integrated Services Router (ISR) revolutionizes WAN communications in the enterprise branch. With new levels of built-in intelligent network capabilities and convergence, it specifically addresses the growing need for application-aware networking in distributed enterprise sites. These locations tend to have lean IT resources. But they often also have a growing need for direct communication with both private data centers and public clouds across diverse links, including Multiprotocol Label Switching (MPLS) VPNs and the Internet.



The Cisco 4000 Family contains five platforms: the 4451-X, 4431, 4351, 4331, and 4321 ISRs.



Cisco 4000 Family ISRs provide you with Cisco® Intelligent WAN (IWAN) software features and a converged branch infrastructure. Along with superior throughput, these capabilities form the building blocks of next-generation branch-office WAN solutions.



Cisco Intelligent WAN (IWAN)

Cisco IWAN is a set of intelligent software services that allow you to reliably and securely connect users, devices, and branch office locations across a diverse set of WAN transport links. IWAN-enabled routers like the ISR 4000 dynamically route traffic across the “best” link based on up-to-the-minute application and network conditions for great application experiences. You get tight control over application performance, bandwidth usage, data privacy, and availability of your WAN links - control that you need as your branches conduct greater volumes of mission-critical business.



Cisco Converged Branch Infrastructure

The Cisco 4000 Series ISRs consolidate many must-have IT functions, including network, compute, and storage resources. The high-performance, integrated routers run multiple concurrent IWAN services, including encryption, traffic management, and WAN optimization, without slowing your data throughput. And you can activate new services on demand through a simple licensing change.
AC input frequency47/63 Hz
AC input voltage100-240 V
Cabling technology10/100/1000Base-T(X)
Colour of productBlack
Depth469.9 mm
Ethernet LAN (RJ-45) ports8
Ethernet LAN data rates10,100,1000 Mbit/s
Firewall securityFirewall, IPSec VPN, EZVPN, DMVPN, FlexVPN
Flash memory8000 MB
Form factor2u
Height88.9 mm
Input current7.1 A
Internal memory2000 MB
Maximum memory card size32 GB
Networking standardsIEEE 802.1ag,IEEE 802.1Q,IEEE 802.3,IEEE 802.3ah
Operating altitude0 - 4750 m
Operating relative humidity (H-H)5 - 90 %
Operating temperature (T-T)0 - 40 °C
Package depth660.4 mm
Package height247.6 mm
Package width565.1 mm
Power consumption (typical)158 W
Power over Ethernet (PoE)No
Power source typeAC,DC
Power supply450 W
Rack mountingYes
Routing protocolsBGP,EIGRP,IS-IS,OSPF
RS-232 ports2
SafetyUL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Storage relative humidity (H-H)5 - 95 %
Storage temperature (T-T)-25 - 70 °C
USB ports quantity3
USB version2.0
WAN connectionEthernet (RJ-45)
Weight13100 g
Width438.15 mm

ISR4451-XK9.pdf

Cisco ISR 4451 Data Sheet

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Cisco ISR 4451

1 Gbps - 2 Gbps, 4x RJ-45 Gigabit Ethernet, 2x USB 2.0, 3 NIM, 2 SM, 8 GB Flash Memor, 2 GB DRAM, 450W, 28.8 lb

ISR4451-X/K9

Stock Due 01-03-2025

£16,928.34
£14,106.95 Ex VAT.