
Chapter 4 — Network Support
100 CN2B Mobile Computer User’s Manual
AutoInterval, AutoMask, AutoSubnet, AutoIP, and AutoSeed are other
registry keys that can modify the behavior of AutoIP. You can find the
appropriate settings and behavior of each of these keys in Microsoft Help.
When a TCP/IP client cannot find a DHCP server, it generates an AutoIP
address from the 169.254.xxx.xxx block. The client then tries to check for a
DHCP server every 15 seconds and if a DHCP server is found, the client
drops the AutoIP address and uses the address from the DHCP server.
In the MSDN Windows CE documentation available out on the Microsoft
Developer Network web site (www.msdn.com), see “Automatic Client
Configuration” for more information on AutoIP.
To disable AutoIP, set the AutoCfg registry entry to “0.” If a DHCP server
cannot be found, instead of using AutoIP, the system will display the
“Unable to obtain a server assigned IP address” message.
Note: If you try to disable AutoIP using a CAB file to set the registry value
for AutoIP, remember to set the EnableDHCP value to “1” to keep DHCP
enabled.
Note: For more attempts a DHCP client makes to get a DHCP address,
use the DhcpRetryDialogue and DhcpMaxRetry registry settings.
Note: Change the AutoInterval registry key value to make the client retry
more often to obtain a DHCP address.
Wide Area Networks
The CN2B Computer does not support wide area networks.
Remote Access (Modems)
You can set up connections to the Internet and corporate network at work
to browse the Internet or intranet, send and receive e-mail and instant mes
-
sages, and synchronize information using ActiveSync. Connections can be
made using a wireless network.
Your CN2B Computer has two groups of connection settings: My ISP and
My Work Network. Use My ISP settings to connect to the Internet. Use
My Work Network settings to connect to any private network.
• My ISP: Once connected, you can send and receive e-mail messages by
using Inbox and view Web or WAP pages by using Pocket Internet
Explorer. The communication software for creating an ISP connection is
already installed on your CN2B Computer. Your service provider pro-
vides the software needed to install other services, such as paging and fax
services. If this is the method you want to use, see “Connecting to an
Internet Service Provider (ISP)” on page 101.
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