Intermec 700 Series User Manual page 113

Network Support
AutoIP/DHCP
Automatic Private IP Addressing (AutoIP) is enabled by default in Pocket PC
2002. To remain compatible with other Pocket PC devices, this setting needs to
be enabled. You can configure the registry settings in the following to set the
required AutoIP/DHCP behavior:
Other registry keys that can modify the behavior of AutoIP are as follows. You
can find the appropriate settings and behavior of each of these keys in Microsoft
Help.
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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 300 seconds (5 minutes) 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, see "Automatic Client Configuration"
for more information on AutoIP.
To disable AutoIP, set the AutoCfg registry entry to "0." If a DHCP server can-
not be found, instead of using AutoIP, the system will display the "Unable to ob-
tain a server assigned IP address" message.
" NOTE:
If AutoIP is defined using CAB files, the EnableDHCP registry key must also be defined and
set to "1" before the system will attempt to obtain a DHCP address.
To extend the number of attempts that a DHCP client makes to get a DHCP address, use the
DhcpRetryDialogue and DhcpMaxRetry registry settings.
Change the AutoInterval registry key value to make the client retry more often to obtain a
DHCP address.
4-36 700 Series Color Mobile Computer User's Manual
For Ethernet:
HKEY_LOCAL_MACHINE\Comm\LAN9001\TcpIp
Fot 802.11b:
HKEY_LOCAL_MACHINE\Comm\NETWLAN1\TcpIp
AutoInterval
AutoMask
AutoSubnet
AutoIP
AutoSeed
SECTION 4