Can not locate DHCP server



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Can not locate DHCP server

Postby SmVmZnJ1bQ » Wed, 19 Oct 2005 23:45:09 GMT

I have a location using a pix 501 router and vpn setup with dhcp relay. All 
but one of the XP SP2 workstations can get an ip number. This workstation at 
one time could get to the dhcp server but it now fails. I have added a static 
IP number and it can ping the dhcp server and the workstation is in DNS. 
There are no errors in the dhcp log file for this workstation, and I check in 
the userenv.log and found nothing. 

I was wondering how I can get more debugging info on the dhcp server or 
workstation, or maybe someone might have another suggestion.

Re: Can not locate DHCP server

Postby Miha Pihler [MVP] » Thu, 20 Oct 2005 02:49:42 GMT


My guess is that it would be best to simply sniff the network with tools 
such as Network Monitor from Microsoft or Ethereal. This way you will be 
able to see if client is actually trying to find DHCP server and if DHCP 
server is actually getting these requests from the client or DHCP relay 

You can get Ethereal for free here:  http://www.**--****.com/ 

Microsoft MVP - Windows Security

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