Founded on 20 years of leadership and innovation, the Cisco® 1800 Series integrated services routers intelligently embed data, security, and wireless technology into a single, resilient system for fast, secure, delivery of mission-critical business applications to small-to-medium sized businesses and small branch offices.

Cisco 1800 Series integrated services routers are the next evolution of the award-winning Cisco 1700 Series routers. The Cisco 1801, 1802, 1803, 1811, and 1812 routers are fixed configuration, while the Cisco 1841 is modular.

Powered by Cisco IOS software , the Cisco 1800 Series router supports the Cisco Self-Defending Network with advanced security services and management capabilities such as hardware encryption acceleration, IPSec VPN (AES, 3DES, DES), firewall protection, inline intrusion prevention (IPS), Network Admission Control (NAC), and URL filtering support. For ease of management and configuration, the Cisco 1800 Series ship with the intuitive, web-based Cisco Router and Security Device Manager (SDM) pre-installed.

Cisco 1841 Integrated Services Router: Secure concurrent services at wire-speed
The Cisco 1841 integrated services router is optimized for wire-speed delivery of secure data-access applications, providing small-to-medium sized businesses and small branch offices with the complete functionality and flexibility to deliver secure Internet and Intranet access.

The Cisco 1841 router provides significant additional value compared to the Cisco 1720 and 1721 routers by offering more than a fivefold performance increase, and a new architecture for delivering secure, concurrent services. A wide range of connectivity options is provided with AIM, new high-speed WAN-interface-card (HWIC), and VWIC modularity, as well as investment protection through the support of more than 30 existing 1700 Series WAN interface cards (WIC/VIC/VWIC data mode only).

Cisco 1800 Series Fixed Configuration Models: Secure concurrent services for broadband access with Redundant WAN Links
The Cisco 1800 Series fixed-configuration models are designed for secure broadband, Metro Ethernet, and wireless connectivity. Businesses can reduce costs by deploying a single device to provide multiple functions, such as DSL broadband access with integrated redundant link, routing, LAN switch, firewall, VPN, IPS, wireless LAN technology, and quality of service (QoS), which are typically performed by separate devices.

The Cisco 1801, 1802, 1803 integrated services routers provide high-speed ADSL or G.SHDSL broadband access while ensuring reliable networking with integrated ISDN S/T BRI backup. The Cisco 1811 and 1812 provide high-speed broadband and Ethernet access through two 10/100BaseT WAN ports and also provide integrated WAN backup through V.92 analog modem (Cisco 1811) or ISDN S/T BRI interface (Cisco1812).