The Cisco 1800 Series fixed-configuration routers have been specifically architected to meet the requirements of SMBs and enterprise branch offices as well as service provider-managed applications for concurrent services for broadband access. The Cisco 1801, 1802, 1803, 1811, 1812, and 1841 routers together with other Cisco integrated services routers such as the Cisco 800, 2800, and 3800 Series provide the broadest range of secure connectivity options in the industry combined with high-availability features. In addition, Cisco IOS Software supports a complete suite of transport protocols, QoS, and network security. Table 2 lists the architecture features and benefits of the Cisco 1800 Series fixed-configuration routers.

Feature	Cisco 1801	Cisco 1802	Cisco 1803	Cisco 1805	Cisco 1811	Cisco 1812
DSL WAN Port	ADSL over POTS	ADSL over ISDN	G.SHDSL (4-wire)	-	-	-
10/100 FE WAN Ports	1	1	1	2	2	2
DOCSIS 2.0	No	No	No	Yes	No	No
Managed Switch Ports	8	8	8	4	8	8
ISDN BRI Dial Backup	Yes	Yes	Yes	-	-	Yes
V.92 Analog Modem Dial Backup	-	-	-	Yes	Yes	-
USB 2.0 Ports	0	0	0	2	2	2
802.11a/b/g Wireless Model	Yes	Yes	Yes	Yes	Yes	Yes
Auxiliary and Console Ports	Yes	Yes	Yes	Yes	Yes	Yes

 

The Cisco IOS Software Advanced IP Services feature set offers basic and advanced routing capabilities to deliver failover protection and load balancing. These capabilities include Border Gateway Protocol (BGP), Open Shortest Path First (OSPF) Protocol, Enhanced Interior Gateway Routing Protocol (EIGRP), and Routing Information Protocol (RIP) routing protocols along with dial-on-demand routing (DDR) and reliable static routing using object tracking. Each of the Cisco 1800 Series fixed-configuration routers is equipped with either an ISDN BRI, V.92 analog modem, or Ethernet port for secondary WAN backup connection. If the primary DSL, cable, or Ethernet-access WAN is disconnected for some reason, the router will detect this failure and will fail over to the secondary backup WAN. As Figure 3 and 4 demonstrate, the Cisco 1800 Series fixed-configuration routers help enable customers to deliver high-performance and high-availability, mission-critical business applications.

 

 

Cisco 1800 Series fixed-configuration routers offer models with an integrated wireless access point, providing secure router and secure wireless LAN services in one device, helping businesses reduce total cost of ownership with simplified WLAN deployment and management capabilities. The integrated wireless access point supports IEEE 802.11a/b/g simultaneously to provide high-speed wireless capability and flexibility to support 2.4 GHz and 5 GHz dual-band simultaneous operation, making them ideal choices for wireless hotspot deployments and wireless office solutions. Cisco Aironet®, Wi-Fi Certified and Cisco Compatible client devices are fully supported.

The Cisco 1800 Series routers with integrated wireless access points are Wi-Fi Certified and support Wi-Fi Protected Access (WPA and WPA2) providing secure mutual authentication and encryption via Cisco IOS Software features to meet the strict demands of today's businesses. These products also provide support for multiple wireless VLANs that can be configured to provide additional security, segmentation, and separation of user groups. When using the routers in conjunction with the Cisco Service Selection Gateway (SSG) and Subscriber Edge Services Manager (SESM), managed service providers can incorporate service-based authorization and accounting, and service and subscriber management for customizable, on-demand wireless services such as hotspots. Additional features such as local authentication allow users to maintain wireless connectivity to the router in the event that a remote authentication server goes down.

Figure 5 shows a Cisco 1800 Series fixed-configuration wireless router deployed in a small branch-office WLAN application.