re: ***TRY THIS*** CANNOT RENEW 169.254.x.x Pls HelP
Wednesday, October 16, 2002 at 9:36 pm Windows XP Annoyances Discussion Forum
Posted by Dennis F.
(1 messages posted)
Method1 - On the Windows 98 CD-ROM in the MTSutil folder (also reference Microsoft
Knowledge Base Article - Q188480):
IPAC_OFF.INF - DISABLE TCP/IP IP AUTOCONFIGURATION
IPAC_ON.INF - ENABLE TCP/IP IP AUTOCONFIGURATION
Method 2 - Registry Hack:
The Windows 98 TCP/IP stack supports a new mechanism for automatic address assignment
of IP addresses for simple LAN-based network configurations. IP Autoconfiguration
Addressing is an extension of dynamic IP address assignment for LAN adapters. It
enables configuration of IP addresses without using static IP address assignment
or installing a Dynamic Host Configuration Protocol DHCP) server.
If a network LAN adapter is configured for TCP/IP, and if "Obtain an IP address automatically"
is selected on the IP Address tab in the TCP/IP Properties dialog box, Windows 98
TCP/IP attempts to find and use a DHCP service on the attached network to obtain
a dynamically assigned IP address. If it does not find a DHCP service, Windows 98
uses IP Autoconfiguration Addressing by assigning the adapter an Class B IP address
out of the network number 169.254.x.x IP address space. In this way, two PCs can
be plugged into a LAN hub and can start without any IP address configuration, and
can use TCP/IP networking for internetworking. Each computer that uses IP Autoconfiguration
Addressing gets an IP address and tests to determine that the IP address is unique
and not already in use on the LAN.
IP Autoconfiguration Addressing is enabled by default. IP Autoconfiguration Addressing
can be controlled by setting the value of IPAutoconfigurationEnabled (type DWORD)
in the registry key
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\VXD\DHCP
If the value of IPAutoconfigurationEnabled is nonzero or if the registry key is absent,
IP Autoconfiguration Addressing is enabled. An IPAutoconfigurationEnabled value of
0 disables the IP Autoconfiguration Addressing feature.
If Windows 98 initially does not detect a DHCP service and configures an IP Autoconfiguration
IP address, and then it subsequently discovers a DHCP service on the network, Windows
98 uses the DHCP service and switches from 169.254.x.x addressing to IP addresses
assigned by a DHCP server.
It seems Microsoft, in its infinite wisdom, didn't provide an *easy* way to disable
this stupid feature (idiots). they would much rather have you agonize over not getting
to the interent than help you turn off something that you don't want (idiots).
Hope this helps! I killed a friend's perfectly good PC with this problem and hope
this helps me help him. Good Luck!
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