Cisco ISR4321-SEC/K9 Refresh

Cisco ISR 4321 Router – 1U Modular – Gigabit

  • 50 Mbps Aggregate throughput
  • IEEE 802.1ag,IEEE 802.1Q,IEEE 802.3,IEEE 802.3ah
  • Ethernet, Fast Ethernet, Gigabit Ethernet
  • IPSec, PPPoE, DHCP
  • 2 x WAN Ports
SKU: ISR4321-SEC/K9/GR3 Category:


The Cisco 4000 family Integrated Services Router (ISR) revolutionizes WAN communications in the enterprise branch. With amazing 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 series ISRs consolidate many must-have IT functions, including network, compute, and storage resources. The high-performance, integrated routers run multiple concurrent IWAN services without slowing your data throughput.

Cisco ISR 4321 features modular network interfaces with diverse connection options for load-balancing and network resiliency and modular interfaces with online removal and insertion (OIR) for module upgrades without network disruption.

Additional information



Device Type Router
Form Factor Rack-mountable – modular – 1U
Features Access Control List (ACL) support, Class-Based Weighted Fair Queuing (CBWFQ), Dynamic Multipoint VPN (DMVPN), Firewall protection, IPFIX, IPSec Virtual Private Network (VPN), IPv6 support, NetFlow, Quality of Service (QoS), RADIUS support, Syslog support, VLAN support, VPN support, Wall mountable, Weighted Random Early Detection (WRED)
Flash Memory 8 GB
Network / Transport Protocol DHCP, IPSec, PPPoE
Routing Protocol BGP, DVMRP, EIGRP, GRE, IGMPv3, IPv4-to-IPv6 Multicast, IS-IS, OSPF, PIM-SM, PIM-SSM, Policy-based routing (PBR), RIP-1, RIP-2, Static IPv4 routing, Static IPv6 routing
Performance Aggregate throughput: 50 Mbps
Power AC 120/230 V (50 – 60 Hz)
Dimensions (WxDxH) 29.4 cm x 36.8 cm x 4.5 cm
Weight 3.5 kg
Remote Management SNMP, RMON
Expansion Slots 2 (total) / 2 (free) x NIM
Interfaces WAN / LAN: 2 x 10Base-T/100Base-TX/1000Base-T – RJ-45 ¦ Serial: 1 x console – RJ-45 ¦ USB 2.0: 1 x 4 pin USB Type A ¦ 1 x SFP (mini-GBIC) ¦ Management: 1 x 1000Base-T – RJ-45
OS Provided Cisco IOS Security

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