CISCO881-SEC-K9 Cisco 881 Ethernet Security Router with Advanced IP Services

Cisco CISCO881-SEC-K9 - Secure Integrated Services Router

The Cisco 881 ISR belongs to the Cisco 880 Series, which combines routing, security, and wireless services into a single device. The SEC-K9 bundle adds advanced security features, making it suitable for small businesses or branch deployments that need VPNs, firewalling, and intrusion prevention.

🔧 Key Specifications

• WAN Interfaces:
  • 1x 10/100 Fast Ethernet WAN port
• LAN Interfaces:
  • 4x 10/100 Fast Ethernet LAN switch ports (with VLAN support)
• Performance:
  • Firewall throughput: ~20 Mbps
  • IPsec VPN throughput: ~25 Mbps
  • Supports up to 20 site-to-site IPsec VPN tunnels
• Memory:
  • 256 MB DRAM (expandable)
  • 128 MB Flash (expandable)
• Security Features (SEC license):
  • Stateful firewall
  • IPsec VPN (site-to-site and remote access)
  • SSL VPN (with license)
  • Intrusion Prevention System (IPS)
  • Content filtering (via Cisco Security subscriptions)
• Operating System: Cisco IOS Software (Universal image with feature licensing)
• Form Factor: Compact desktop router, fanless (quiet operation)

🧩 Ideal Use Cases

• Small offices / teleworkers needing secure WAN access
• Branch offices requiring VPN connectivity back to HQ
• Retail or remote sites needing firewall + VPN in a compact form factor
• Managed service providers delivering secure CPE (Customer Premises Equipment)