Cisco CISCO1811/K9 - Cisco 1811 Security Router
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General Information
Interfaces/Ports
Technical Information
Miscellaneous
Storage Capacity
The Cisco CISCO1811/K9 is a compact, rack- or desktop-mount integrated services router crafted for small business and branch deployments. It offers two Gigabit Ethernet interfaces (GE RJ‑45), one EHWIC expansion slot for optional modules (such as additional LAN/WAN, serial, or voice), and 1 USB port for storage or backup configurations. Powered by Cisco IOS Software (IP Base or Security), it delivers enterprise-grade features including IPsec VPN, firewall, NAT, QoS, and IPv6 routing, with hardware encryption support. The Cisco 1811/K9 balances performance, modularity, and secure connectivity in environments needing flexible expansion and reliable network services.