Name: ISR4431-SEC/K9 Cisco 4431 ISR Security Bundle 4xGE/SFP 3xNIM 8GB
Brand: Cisco
SKU: ISR4431-SEC/K9
Price: 474.00 USD
Availability: InStock
Rating: 4.8 (129 reviews)

Product Overview
The Cisco 4431 Integrated Services Router (ISR) delivers routing and security functions suitable for enterprise branch networks. It features a security bundle, four Gigabit Ethernet/SFP ports, three Network Interface Module slots, 8GB of flash memory, and 4GB DRAM, supporting diverse network environments and interfaces.

General Information
Brand	Cisco

Technical Information
WAN Ports	4
LAN Ports	4
POE Support	No
Connector Type	RJ-45,SFP,USB,Console
RAM	4 GB
Flash / Storage	8 GB
SFP / SFP+ Ports	4
Built-in Modem	None
Management Interface	Web GUI, CLI (SSH/Telnet), REST API, SNMP, Netconf/YANG, Cisco DNA Center

Routing & Protocols
Multi-WAN / Load Balancing	Yes
NAT Support	Yes
Routing Protocols	Static, RIP, RIPng, OSPF, OSPFv3, EIGRP, BGP, IS-IS, VRRP, HSRP, PIM-SM, PIM-DM, IGMP, MLD, Policy-Based Routing (PBR), Route Maps

Networking Features
VPN Support	IPSec, DMVPN, FlexVPN, GRE
QoS Support	Basic QoS, DSCP, MQC, Traffic Shaping, Traffic Policing
Firewall	Zone-Based
VLAN Support	Yes

Physical Characteristics
Enclosure Type	Rack-Mountable 1U
Condition	Refurbished
Weight	3.00

Product Description
The Cisco 4431 Integrated Services Router (ISR) combines routing capabilities with a security bundle to support branch and enterprise network deployments. Designed to handle demanding network environments, it provides connectivity through multiple Gigabit Ethernet and SFP ports and allows for interface expansion via NIM slots. This router is typically used by IT teams in medium to large organizations that require secure and scalable network infrastructure with flexible interface options. Key Features Integrated security bundle for enhanced network protection Four 1 Gigabit Ethernet/SFP combo ports for versatile connectivity Three NIM slots to accommodate various network interface modules 8GB flash memory supporting system storage needs 4GB DRAM for system performance and multitasking The Cisco 4431 ISR provides a balanced combination of routing and security functions suitable for complex network environments. Its modular design allows for interface customization, making it adaptable to evolving network requirements without compromising on security features.

Use Cases
The Cisco 4431 ISR is commonly deployed in enterprise branch offices and medium-sized networks requiring integrated security and flexible connectivity. It supports environments where secure data routing and modular interface expansion are essential for operational needs. How It's Used: Providing secure WAN connectivity in distributed branch networks Supporting multiple interface types with NIM slots for diverse network links Enabling Gigabit Ethernet and fiber connections through built-in ports Serving as a platform for integrated security features in enterprise deployments Facilitating network scalability with modular and expandable design This router plays a key role in maintaining secure and adaptable network infrastructure within complex enterprise environments, allowing IT teams to tailor connectivity and security measures to specific organizational requirements.

FAQ's
What interfaces are included on the Cisco ISR4431-SEC/K9? The router includes four 1 Gigabit Ethernet/SFP combo ports and three Network Interface Module slots for additional interface flexibility. What memory specifications does the ISR4431-SEC/K9 offer? It is equipped with 8GB of flash memory and 4GB of DRAM to support its operations and storage needs. What is included in the security bundle of the ISR4431-SEC/K9? The product includes an integrated security bundle designed to provide network protection as part of its routing capabilities. How many NIM slots are available on this router? The Cisco 4431 ISR provides three Network Interface Module slots for interface expansion. Who typically uses the Cisco 4431 ISR? IT professionals in medium to large enterprises use this router to support secure, scalable branch and enterprise network infrastructures. Can the ISR4431-SEC/K9 support fiber connections? Yes, the router's SFP combo ports allow for fiber optic connectivity options.