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Series Overview

For Medium-sized Businesses, Enterprise Branches, Head Offices,  
and the Service Provider Edge

Cisco offers the industry’s broadest and most versatile portfolio of secure, high-performance 
Integrated Services Routers, enabling the deployment of a wide array of services to the farthest 

reaches of an organization, from the home office to the small office to the large enterprise branch 
and head office.

Cisco 850 Series

Small Offices

•  Manageability and reliability of 

Cisco IOS

®

 

Software Secure Connectivity

• Stateful inspection firewall
•  VPN 3DES encryption (hardware-

accelerated) 

Fixed Configuration 

•   Asymmetric DSL (ADSL) over 

analog telephone lines (Cisco 857)

• 100 MB Ethernet (Cisco 851)
•  Secure WLAN 802 .11b/g option 

with a single fixed antenna

•  4-port 10/100Base-T switch with 

autosensing MDI/MDX (Media 

Device In/Media Device Crossover) 

for auto-crossover

Cisco 1841 Integrated  
Services Router

Small- to Medium-sized Businesses 

and Small Enterprise Branch Offices

•  Wire-speed performance with 

secure data services enabled at up 

to T1/E1/xDSL rates

•  Increased services density for 

secure data services

•  Support for next-generation 

High-speed WAN Interface Cards

•  Increased flexibility through  

support of internal AIM slot for 

high-speed VPN and future 

applications

•  Built-in dual routed Fast Ethernet 

ports

•  Support for over 30 existing and  

new modules 

Secure Networking

•  Hardware-based VPN acceleration 

on motherboard 

• Antivirus defense
• Intrusion Prevention System (IPS) 
• SDM Support 

Integrated Switching

•  Support for the 4-port 10/100 

managed EtherSwitch module

Integrated Wireless

•  Wireless WAN support 
• Support for Wireless Access Point

Cisco 870 Series

Small Offices and Teleworker 

Deployments

•  Secure, concurrent services for 

broadband access

•  Manageability and reliability of 

Cisco IOS Software

Business-class Security

• Stateful inspection firewall
•  VPN 3DES encryption and 

Advanced Encryption Standard 

(AES) encryption

• Intrusion Prevention System (IPS)
• URL Filtering 

Fixed Configuration

•  4-port 10/100 managed switch with 

VLAN support

•  Secure WLAN 802 .11b/g option 

with a single fixed antenna with 

replaceable diversity antennas

• 100 MB Ethernet (Cisco 871)
• ADSL over ISDN (Cisco 876)
•  ADSL over analog telephone lines 

(Cisco 877)

• G .SHDSL (Cisco 878)

Cisco 1861 Series

Small- to Medium-sized Businesses 

and Small Enterprise Branch Offices

•  Wire-speed performance with 

secure data services enabled at up 

to T1/E1/xDSL rates

•  Increased services density for 

security voice, and L2 switching

• Built-in Fast Ethernet Switch
•  Support for over 30 existing and  

new modules 

Secure Networking

•  Hardware-based VPN acceleration 

on motherboard

• Intrusion Prevention Systems (IPS)

IP Communications and IP 
Telephony Support

•  IP Communications Express  

(CCME/SRST/CUE)

•  Onboard PVDM Support 

(non-upgradeable)

•  Onboard Voice Ports, including  

FXS, FXO, and BRI 

Integrated Switching

•  8 powered 10/100 switch ports
•  802 .3af Power over Ethernet 

compliance

Integrated Wireless

•  Wireless WAN Support
• Support for Wireless Access Point

Cisco 2800 Series

Small- to Medium-sized Businesses 

and Enterprise Branch Offices

•  Wire-speed performance up to 

multiple T1/E1/xDSL rates

•  Increased services density for 

security, voice, caching, video, 

network analysis, and L2 switching

•  Support for enhanced interfaces 

(NME, HWIC, EVM, and PVDM2)

•  Built-in dual Fast Ethernet or  

Gigabit Ethernet ports

•  Support for over 90 existing and  

new modules

•  Optional support for integrated 

Power over Ethernet (PoE) 

Secure Networking

•  Hardware-based VPN acceleration 

on motherboard

• Antivirus Defense 
•  Intrusion Prevention System (IPS) 

IP Communications and IP 
Telephony Support

•  IP Communications Express  

(CCME/SRST/CUE) 

•  Enhanced Modularity (EVM and 

PVDM2 support) 

Integrated Switching

•  Up to 64 powered 10/100 switch 

ports

•  802 .3af Power over Ethernet 

compliance

Integrated Wireless

•  Wireless WAN Support
• Support for Wireless Access Point
•  Integrated Wireless LAN Controller 

options

Cisco 1800 Series  
(Fixed-configuration)

Small Offices and Small Enterprise 

Branch Offices

•  Secure, concurrent services for 

broadband access with WAN high 

availability

•  Manageability and reliability of 

Cisco IOS Software 

Business-class Security

• Stateful firewall with URL filtering
•  VPN 3DES encryption and 

Advanced Encryption Standard 

(AES) encryption

• Dynamic Multipoint VPN (DMVPN)
•  Intrusion Prevention System (IPS) 

Fixed Configuration

•  Secure broadband access at 

broadband performance

•  Integrated ISDN Basic Rate S/T 

Interface (BRI), analog modem, or 

Ethernet backup port for redundant 

WAN links and load balancing

•  Secure wireless LAN option for 

simultaneous 802 .11a and 802 .11b/g 

with use of multiple antennas

•  8-port 10/100 managed switch with 

802 .1q VLAN support and optional 

Power over Ethernet (PoE)