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8
Wireless LAN Communication with 802.11g
Overview
The Dolphin 7850 has an on-board 2.4 GHz 802.11g WLAN (Wireless Local Area Network) radio that uses Direct Sequence
Spread Spectrum (DSSS) technology. The signal is spread continuously over a wide frequency band at a data rate of up to 11
Mbps. The radio is interoperable with other 802.11g Wi-Fi-compliant products including Access Points (APs), PCs via PC card
adapters and other wireless portable devices.
Server-Assigned IP Addresses
Please note that all server-assigned IP addresses use Dynamic Host Configuration Protocol (DHCP).
Zero-Config Wi-Fi
Zero-config Wi-Fi feature of Windows Mobile is disabled on Dolphin terminals.
Enabling the 802.11g Radio
By default, the 802.11g radio is enabled after each hard reset. To verify that the 802.11g radio is transmitting or to disable the
802.11g, access the
Radio Manager
Configuring the 802.11g Radio
The Dolphin 7850 contains the Meetinghouse AEGIS Client
radio. The Client is a standards-based implementation of IEEE 802.1X and can be configured to work with almost any network
equipment–wired or wireless–that supports the 802.1X authentication standard. The Client is interoperable with 802.1X-capable
wireless APs and authentication servers including Microsoft's IAS and Cisco's ACS.
The Client uses public key authentication and encryption between Wireless APs (WAP) and roaming stations to exchange
dynamic Wired Equivalent Privacy (WEP) keys. In addition, network managers can control 802.1X user profiles from a centralized
RADIUS server or, in the case of TTLS, from a RADIUS Diameter or other AAA servers. The Client supports both wireless
(802.11a/b/g) and ethernet interfaces.
Supported Protocols
Authentication
The Client supports the following authentication methods according to the 802.1X protocols:
•
MD5
•
EAP TLS
•
EAP TTLS
•
Cisco LEAP and PEAP
•
Microsoft PEAP
Encryption
The Client supports the following encryptions methods:
•
WEP (64-bit and 128-bit)
•
TKIP
The Client can also configure the 802.11g radio with no authentication and no encryption; see
page
8-17.
Required Network Configuration Information
Because the Client accesses a network that is protected by the IEEE 802.1X protocol, you must configure EAP data
communication to match your network server parameters. If the EAP configuration doesn't match your network configuration, you
can't access the network. Therefore, make sure you have the correct network server parameters on hand when you configure
the client.
Dolphin® 7850 Series User's Guide–
Preliminary
(see page 7-13).
®
, a comprehensive IEEE 802.1X tool to set up the on-board 802.11g
Rev (b)
5/15/2007
Associating With Open APs
on
8 - 1
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