DHCP 무응답으로 인한 지연시 새로고침/복구

SYMPTOMS
A DHCP client may experience a delay obtaining an IP address from a DHCP server.



CAUSE

When a client boots, it tries a renew process for the address that it previously owned. If the client does not receive a response to its request for a renewal, the DHCP client waits five minutes before attempting to renew the address. However, the discover process is not affected by the new registry key described later in this article.



RESOLUTION

WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.


A new registry parameter has been added so that the client does not wait for five minutes before attempting to discover a new address. The process for obtaining an address is clearly stated in RFC 1541.

1. Start Registry Editor (Regedt32.exe).
2. Locate the following key in the registry:
HKEY_LOCAL_Machine\System\CurrentControlSet\Services\Dhcp\Parameters
3. On the Edit menu, click Add Value, and then add the following registry value:
Value Name: DhcpUseLargeNumberOfRequests
Data Type: REG_DWORD
Value: 1 (default is 0) 
4. Quit Registry Editor.



WORKAROUND

To work around this issue, run the following commands from the command prompt:
ipconfig /release
ipconfig /renew



p.s. DHCP 사용 요청 제한을 늘려서 증상을 완화해주는 것 같습니다.

You may also like...

댓글 남기기