
Cisco 1800 Series 
Wireless Example
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 | Cisco 1800 Fixed- | 
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 | Configuration Router with | 
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| PCs | 
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File Server
Laptops
When to Deploy
Cisco 1800 Series 
High-Availability  Features Example
Headquarters Office
Platform Overview
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 | FE WAN | Switch | 
 | Wireless | DRAM (MB) | Flash (MB) | Power | |||
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 | Models | Ports | Ports | WAN | Option | Default Max | Default Max | Supply | |||
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 | Cisco 1801 | 1 | 8 | ADSL | Yes | 128 | 384 | 32 | 128 | AC | 
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 | Cisco 1802 | 1 | 
 | ADSLoISDN | Yes | 
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 | AC | |
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 | 8 | 128 | 384 | 32 | 128 | ||||||
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 | Cisco 1803 | 1 | 
 | G..SHDSL | Yes | 
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 | AC | |
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 | 8 | 128 | 384 | 32 | 128 | ||||||
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 | Cisco 1811 | 2 | 
 | 10/100 Ethernet | Yes | 
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 | AC | |
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 | 8 | 128 | 384 | 32 | 128 | ||||||
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 | Cisco 1812 | 2 | 
 | 10/100 Ethernet | Yes | 
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 | AC | |
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 | 8 | 128 | 384 | 32 | 128 | ||||||
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Series Specifications
Deploy the Cisco 1800 Series fixed- configuration routers when you need:
•An 
•Fully integrated DSL/Security/Wireless router
•To support high performance Internet access
•High availability Internet connections and load balancing
•Easy to order products
•Ability to connect several LAN devices
| Dimensions (H x W x D) | 12..5 x 9..5 in.. (34..3 x 27..4 cm) | 
| Console Port | 1 (up to 115..2 Kbps) | 
| Auxiliary Port | 1 (up to 115..2 Kbps) | 
| USB Port | 2 (USB 2..0) on Cisco 1811 and 1812 only.. The Cisco | 
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 | 1801, 1802, and 1803 do not offer USB support | 
| Wireless LAN | IEEE 802..11a,b,g (W models) | 
| V.92 Analog Modem Port | One analog modem port on Cisco 1811 | 
High-Availability  Features
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 
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| Integrated Channel Service Unit/Data | No, see Cisco 1841 | |
| Service Unit (CSU/DSU) | 
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| Voice/Data Support | Only data support | |
| Encryption | Hardware support on motherboard (3DES and AES) | |
| 10/100 Switch Ports | 8  | |
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 | 802..3af PoE support | |
| Integrated Modems | 1 | (Cisco 1811 model only) V..92 | 
| Default 10/100 WAN Ports | 1 | (Cisco 1801, 1802, 1803, and 1812 models), 2 (Cisco 1811 | 
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 | and 1812 models) | |
ISDN Basic Rate Interface (BRI) Ports S/T 1 (Cisco 1801, 1802, 1803, and 1812 models only)
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