CISCO881G-K9 Cisco 881G Ethernet Sec Router w/ 3G B/U

Cisco CISCO881G-K9 - 3G Wireless Integrated Services Router

The Cisco 881G ISR extends the standard 880 Series by integrating a 3G wireless WAN modem. This allows organizations to deploy secure WAN connectivity in locations where wired broadband isn’t available or to use 3G as a resilient backup link for business continuity.

🔧 Key Specifications

• WAN Interfaces:
  • 1x 10/100 Fast Ethernet WAN port
  • Integrated 3G WWAN modem (carrier-specific models available)
• LAN Interfaces:
  • 4x 10/100 Fast Ethernet LAN switch ports (with VLAN support)
• Wireless WAN:
  • 3G (HSPA, EVDO, or UMTS depending on SKU)
  • Supports external antennas for improved signal reception
• Performance:
  • Firewall throughput: ~20 Mbps
  • IPsec VPN throughput: ~25 Mbps
  • Up to 20 site-to-site VPN tunnels
• Memory:
  • 256 MB DRAM (expandable)
  • 128 MB Flash (expandable)
• Security Features:
  • 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

• Primary WAN: For sites without wired broadband (construction sites, kiosks, rural offices).
• Backup WAN: 3G link provides failover connectivity if the wired WAN fails.
• Small offices / teleworkers: Secure VPN and firewall in a compact form factor.
• Retail or remote sites: Quick deployment with cellular WAN.