3com 8250 Manual De Usuario

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®
W I R E L E S S   L A N   A C C E S S   P O I N T S   7 2 5 0 / 8 2 5 0 / 8 5 0 0 / 8 7 5 0  
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Feature
Benefit
Powerful
High-speed and wide coverage
11g radio supports speeds up to 54 Mbps at distances up to 100 meters (328 feet); 11a radio
supports speeds up to 54 Mbps at distances up to 50 meters (164 feet). (11a not supported
by the Access Point 7250.)
11a Turbo mode
Provides even higher throughput capability, up to 108 Mbps.
User support
Each access point supports up to 253 simultaneous users, allowing plenty of room for growth.
Secure
40/64- and 128-/154-bit WEP and  
Basic and advanced encryption protect the privacy of data transmitted over the wireless LAN.
WPA 256-bit AES encryption
Dynamic security link (DSL)
Automatically assigns user-specific 128-bit encryption keys for wireless sessions.
Dynamic session key management and TKIP 
Dynamic key assignment improves security and simplifies deployment.
802.1x RADIUS server authentication
Helps ensure that only authorized users can access your network and centralizes authorization
of wireless users across your network.
Access control lists
Control access to network resources.
Client-to-client and uplink filtering
Block direct communications between other wireless users associated to the access points.
MAC address filtering
Allows only specific WLAN cards to connect to the access point.
Dynamic VLAN assignment
Used with RADIUS authentication, assigns users to an appropriate VLAN, further protecting
access to network resources.
Compatible and Flexible
Modular, dual-mode radio architecture 
Interchangeable radio slots support more wireless clients within the same coverage area with
(8250/8500/8750)
optional Mini PCI upgrade kits.
Simultaneous standard support
802.11a and 802.11g in same access point provide concurrent wireless connectivity for all 
(8250/8500/8750)
802.11 a/b/g clients.
802.11g-802.11b backward-compatibility
11g radio supports both11g and 11b wireless users, preserving existing wireless investments. 
Wi-Fi certification
Ensures interoperability with Wi-Fi certified products from other vendors.
Power over Ethernet (PoE) 
Solves hard-to-wire location problems; Ethernet cable supplies connectivity and electrical
power. 802.3af-compliant power injector included with the Access Point 8250, 8500, and
8750; the AP 7250 ships with an AC power adapter.  
Easy to Use Management
Simple installation
No need to drill holes or run Ethernet cabling to set up your network.
Dynamic Host Configuration Protocol 
Provides DHCP passthrough to simplify management.
(DHCP) support
Wireless Infrastructure Device Manager 
Automatically identify and configure network devices, run diagnostics, and monitor 
and Wireless LAN Device Discovery tools
performance.
Web-based administration
Works with any web browser that supports HTML and Java Script; lets you configure and
manage network devices from anywhere.
Save and load feature
Copies settings to wireless devices on the network, simplifying and speeding LAN setup.
3NS support 
Powerful yet simple-to-use network management designed for small businesses.
SNMP, HP OpenView support
Enables remote, central management using popular third-party network management programs.
RADIUS accounting support
Enables billing by usage for hotspot and other commercial deployments.
Site survey tool
Works with 3Com enterprise wireless PC Cards to help you optimize the location and number
of access points for your site.
Reliable
Dynamic rate shifting and auto 
Automatically moves between connection speeds in response to physical conditions and RF 
network connect
interference.
Clear Channel Select
Selects the channel with the least traffic for problem-free connections.
*Range depends on physical conditions, building construction, electrical devices in the area, and other environmental factors. 
The simple, secure way to network without wires