Cisco ISR4321/K9 4321 Integrated Service Router
by Cisco
- Model: Cisco ISR4321/K9
- Series: Cisco 4300 Series Integrated Services Routers
- Type: Integrated Services Router (ISR)
- Form Factor: Rack-mounted or Desktop (Fixed Configuration)
- Processor:
- 1 x Multi-core processor designed for high performance and scalability
- Embedded hardware encryption for enhanced security
- Memory:
- 4 GB DRAM for fast and efficient data processing
- 4 GB Flash memory for system storage and software management
- Network Ports:
- 2 x Gigabit Ethernet WAN ports (10/100/1000 Mbps) for internet or remote access
- 3 x Gigabit Ethernet LAN ports (10/100/1000 Mbps) for internal network connections
- 2 x Enhanced High-Speed WAN Interface Card (EHWIC) slots for additional connectivity or service expansion (modules sold separately)
- 1 x USB 2.0 port for external devices or storage
- Modular Slots:
- 2 x Internal Service Module (ISM) slots for future expansion (supporting various service modules such as security, wireless, etc.)
- 1 x Network Interface Module (NIM) slot for additional network interfaces or specialized connectivity (e.g., fiber, serial, etc.)
- Security Features:
- Stateful firewall for secure traffic management and protection against external threats
- VPN support: Secure remote connections via IPSec VPN, SSL VPN, and DMVPN
- Intrusion Prevention System (IPS) for proactive threat detection and protection
- Access Control Lists (ACLs) for controlling access and traffic flow
- Network Address Translation (NAT) for IP address management and security
- Routing Protocols:
- Supports dynamic and static routing protocols including RIP v1/v2, OSPF, EIGRP, and BGP
- IPv4 and IPv6 routing for dual-stack network environments
- Policy-based Routing (PBR) for granular control over routing decisions
- Voice and Collaboration:
- VoIP-ready with support for Cisco Unified Communications and voice services
- Supports voice protocols such as SIP and H.323 for IP telephony
- Quality of Service (QoS):
- Integrated QoS features for prioritizing voice, video, and critical data traffic
- Ensures consistent performance of real-time applications such as VoIP and video conferencing
- WAN Optimization:
- Built-in WAN optimization for efficient use of bandwidth, especially for applications such as video and voice
- Wireless Support:
- Optional support for wireless LAN via Cisco Access Points or Wireless LAN Controllers (depending on configuration)
- Performance:
- Throughput: Up to 100 Mbps depending on network configuration and service load
- VPN Throughput: Up to 30 Mbps for IPSec VPN connections
- Power over Ethernet (PoE):
- Optional support for Power over Ethernet (PoE) to power IP phones, cameras, and other network devices (depending on configuration)
- Management and Monitoring:
- Easy configuration via Cisco Configuration Professional (CCP) or Cisco IOS CLI
- Remote management and monitoring with Telnet, SSH, and SNMP
- Integration with Cisco Prime Infrastructure for centralized network management and monitoring
- Cisco DNA Center support for network automation and management
- Environmental Conditions:
- Operating Temperature: 32°F to 104°F (0°C to 40°C)
- Storage Temperature: -40°F to 158°F (-40°C to 70°C)
- Relative Humidity: 10% to 85% non-condensing
- Compliance:
- RoHS and WEEE compliant
- Certifications: CE, UL, FCC, VCCI, CB Scheme and KC (varies by region)
- Power Supply:
- AC 100-240V input for global compatibility
- Optional Power over Ethernet (PoE) to supply power to IP phones, access points, and other devices
- Dimensions:
- Height: 1.75 inches (4.4 cm)
- Width: 17.2 inches (43.7 cm)
- Depth: 14.0 inches (35.5 cm)
- Weight: 6.6 lbs (3 kg)
| UPC | Cisco ISR4321/K9 |
|---|---|
| Model Number | ISR4321/K9 r |
| SKU | 17237 |
Reviews
Description
Cisco ISR4321/K9 4321 Integrated Service Router
The Cisco ISR4321/K9 Integrated Services Router is part of the Cisco 4300 Series and is designed to deliver high-performance, scalable, and secure networking services for small to medium-sized businesses and branch offices. This router offers an ideal solution for those needing to integrate various services like voice, video, security, and data across their networks.
Equipped with a multi-core processor and 4 GB of DRAM (expandable), the ISR4321 provides robust performance while handling demanding tasks such as data encryption, routing, and traffic management. It supports multiple Gigabit Ethernet WAN and LAN ports, allowing seamless integration into existing network infrastructures. With 2 Enhanced High-Speed WAN Interface Card (EHWIC) slots and 2 Internal Service Module (ISM) slots, the router is highly modular, enabling easy expansion and future-proofing for growing networks.
The router also features advanced security capabilities, including support for VPNs (IPSec, SSL), a stateful firewall, Intrusion Prevention System (IPS), and Access Control Lists (ACLs) to ensure the protection of sensitive data and network integrity. With support for various dynamic and static routing protocols like RIP, OSPF, EIGRP, and BGP, the ISR4321 provides flexible and reliable routing options for diverse network environments.
Additionally, the ISR4321 is VoIP-ready and integrates smoothly with Cisco Unified Communications to provide high-quality voice and video communication capabilities. The router also prioritizes mission-critical traffic through Quality of Service (QoS) features, ensuring that voice and video calls are delivered with optimal clarity and minimal latency.
Ideal for organizations that require a balance of performance, security, and scalability, the Cisco ISR4321 is a versatile, reliable, and cost-effective solution for enhancing your network infrastructure. Whether used in secure internet access, remote branch offices, or unified communications, it helps businesses stay connected and secure in today’s fast-paced digital environment.
