
Cisco 850 Series
Series Distinctions
When to Deploy
Deploy the Cisco 850 Series when you need:
• Secure connectivity with stateful inspection
rewall and IP Security (IPsec) VPN support for
small ofces
• Four-port 10/100 switch
• Secure WLAN 80211b/g option with a single
xed antenna
• Easy setup, deployment, and remote
management capabilities through Web-based
tools and Cisco IOS Software
Platform Overview
Cisco 850 Series
Security Features
WLAN Features
17
Cable
T e leworker
Small Offices or
Small Businesses
Corporate Headquarters
Internet
DSL
Network Example
Cisco 850 Series
WAN Technologies
• Cisco 851 – 100 MB Ethernet
• Cisco 857 – ADSL over analog telephone lines
LAN Switch
4-port 10/100Base-T switch with autosensing MDI/MDX (Media Device In/Media
Device Crossover) for auto-crossover
Security
Stateful rewall, IPsec, and AES VPNs
WLAN Option
80211b/g with single xed antenna
Models WAN Interface LAN Interface 802 .11b/g
Cisco 851
10/100 Mbps Fast Ethernet 4-port 10/100 Mbps managed switch No
Cisco 851W
10/100 Mbps Fast Ethernet 4-port 10/100 Mbps managed switch Ye s
Cisco 857
ADSL 4-port 10/100 Mbps managed switch No
Cisco 857W
ADSL 4-port 10/100 Mbps managed switch Ye s
Cisco 850 Security Features
• Stateful inspection rewall
• Hardware-accelerated Triple Data Encryption Standard (3DES) for IPsec
• Hardware-accelerated Advanced Encryption Standard (AES) for IPsec
• IPsec 3DES termination/initiation
• IPsec pass-through
• Point-to-Point Tunneling Protocol (PPTP) pass-through
• L2TP pass-through
WLAN Hardware
• 80211b/g
• Wi-Fi and Wireless Multi-Media (WMM) Certied
• Automatic rate selection for 80211b/g
• Single, xed antenna
• WECA interoperability
• Default antenna gain: 22 dBi
WLAN Software Features
• Maximize throughput or maximize
range option
• Software congurable transmit power
• SSID Globalization
• SSIDs =10
• Wireless VLANs =10
• Encrypted Wireless VLANs = 4
• MBSSIDs =1
WLAN Security Features
• 8021X
• 80211i
• Wi-Fi Protected Access (WPA) and AES (WPA2)
• EAP Authentication: Cisco LEAP, PEAP, EAP-TLS,
EAP-FAST, EAP-SIM, EAP-MD5, EAP-TTLS
• Static and dynamic Wired Equivalent
Privacy (WEP)
• Temporal Key Integrity Protocol (TKIP)/SSN
Temporal Key Integrity Protocol/Simple
Security Network encryption
• MAC authentication/lter
• User database for survivable local
authentication using LEAP and EAP-FAST
• Congurable limit to the number of
wireless clients
• Congurable RADIUS accounting for
wireless clients
• PSK (Pre Shared Keys) (WPA-SOHO)
Physical Specications
Dimensions (H x W x D)
Dimensions with antenna connectors: 200 x 1025 x 913 in
(508 x 2604 x 2319 mm)
Dimensions without antenna connectors: 200 x 1025 x 850 in
(508 x 2604 x 21599 mm)
Weight
210 lb
Power Dissipations
AC Input Voltage
100–240 VAC
Frequency
50–60 Hz
Maximum Output Power
26W
Output Voltages
5 and 12V
Environmental Specications
Operating Temperature
32 to 104°F (0 to 40°C)
Non-operating Temperature
-4 to 149°F (-20 to 65°C)
Relative Humidity (non-condensing)
10 to 95%
Operating Altitude
0 to 15,000 ft (0 to 4570 m)
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