Cisco 1812/K9 is a fixed-configuration Integrated Services Router (ISR) from Cisco’s 1800 series, designed for small branch offices and secure broadband connectivity.
It provides dual WAN connectivity, an integrated LAN switch, and enterprise security features, making it suitable for Metro Ethernet, DSL, and branch VPN deployments.
It is a step up from older Cisco 1700 series routers and is commonly used as a secure edge router for SMB and enterprise branch networks.
Key Features
- 2 × Fast Ethernet WAN ports (10/100 Mbps)
- 8-port integrated Fast Ethernet LAN switch (10/100 Mbps)
- ISDN S/T backup interface (redundant WAN failover)
- Enterprise security features:
- Stateful firewall
- IPsec VPN (3DES/AES support)
- Intrusion prevention (IPS capability via IOS features)
- NAT, QoS, and VLAN support
- Optional services depending on IOS image (routing, VPN, security packages)
Technical Specifications
- Part Number: CISCO1812/K9
- Series: Cisco 1800 ISR
- WAN Interfaces: 2 × 10/100 Fast Ethernet
- LAN Interfaces: 8 × 10/100 Fast Ethernet switch ports
- Backup Interface: ISDN S/T BRI
- Memory: ~128 MB RAM (expandable in some configurations)
- Flash: ~32 MB (expandable)
- Throughput: ~25–100 Mbps (depending on IOS/features)
- Routing Protocols: OSPF, EIGRP, RIP, BGP (IOS dependent)
- Form Factor: Desktop / small rack mount
- Use Case: Branch office routing, VPN edge, DSL/Metro Ethernet access
90 DAY'S
