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Table 4. WLAN (Cisco 851W and 857W) Features of the Cisco 850 Series
Feature Description
WLAN Hardware
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802.11b/g
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Automatic rate selection for 802.11b/g
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External antenna (cannot be removed)
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Indoor range: 1 Mbps @ 320 ft
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WECA interoperability
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Default antenna gain: 2.2 dBi
WLAN Software Features
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Maximize throughput or maximize range option
●
Software configurable transmit power
●
SSID Globalization
WLAN Security Features
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802.1X
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802.11i
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Wi-Fi Protected Access (WPA) & AES (WPA2)
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EAP Authentication: Cisco LEAP, PEAP, EAP-TLS, EAP-FAST, EAP-SIM, EAP-MD5,
EAP-TTLS
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Static and dynamic Wired Equivalent Privacy (WEP)
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Temporal Key Integrity Protocol (TKIP)/SSN Temporal Key Integrity Protocol/Simple
Security Network encryption
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MAC authentication/filter
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User database for survivable local authentication using LEAP & EAP-FAST
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Configurable limit to the number of wireless clients
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Configurable RADIUS accounting for wireless clients
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PSK (Pre Shared Keys) (WPA-SOHO)
SSIDs 10
Wireless VLANs 10
Encrypted Wireless VLANs 4
MBSSIDs 1
Table 5. Hardware Features of the Cisco 850 Series
Feature Description
Default DRAM 64 MB
Maximum DRAM 64 MB
Default Flash Memory 20 MB
Maximum Flash Memory 20 MB
WAN
●
Cisco 851: 100 MB Ethernet
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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
802.11b/g WLANs Optional on both Cisco 851 and Cisco 857 models
Console Port RJ-45
LEDs PPP, VPN, ADSL, WLAN, LAN
External Power Supply Universal 100 to 240 VAC
DSL Specifications
●
ST-Micro DynaMiTe (formerly Alcatel Micro Electronics) ADSL Chipset (20190)
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T1.413 ANSI ADSL DMT issue 2
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G.992.1 ITU G.DMT support
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G.992.3 ITU G.hs ADSL type negotiation
●
G.992.3 (ADSL 2)/G.992.5(ADSL2+)
●
DSL Forum TR-067 The chipset does not provide interoperability with carrierless
amplitude modulation/phase modulation (CAP)-based ADSL lines.
Wireless Specifications
Data Rates Supported 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, and 54 Mbps