DHCP client test tool?

Question

_{Thursday, February 9, 2012 8:20 AM}

Hi

I have a problem with a lot of clients. They use 2,5 minutes to start. If I give them a static IP they use 30 seconds.

I know this is related to DHCP, but I dont know where the problem is.

There are no usable events in the event log.

Is it true there is NO DHCP client testing tool? I would like to see the DORA process - but the only tool I have found is for Mac.

I know the dhcp trace enable - but MS did not make it easy to view the etl file :-)

Any suggestions? Maybe a tool to test the dhcp process?

Br

Steen

All replies (4)

_{Thursday, February 9, 2012 8:35 AM ✅Answered}

Hello,

please post an unedited ipconfig /all from a problem client and your DC/DNS/DHCP server.

Sounds for me a bit more for DNS then DHCP, as DHCP works or not. But long boot times belong often to DNS.

Best regards

Meinolf Weber
MVP, MCP, MCTS
Microsoft MVP - Directory Services
My Blog: http://msmvps.com/blogs/mweber/

Disclaimer: This posting is provided "AS IS" with no warranties or guarantees , and confers no rights.

_{Friday, February 10, 2012 6:13 AM ✅Answered}

Hi Steen,

Thank you for your post.

In addition, please perform steps below to troubleshooting:
1.Reboot your switch and make sure the portfast is enabled on the switch interface
2.Clean boot your computers to verify if issue exist
3.Using network monitor 3.4 to capture DHCP packet in your network.

If there are more inquiries on this issue, please feel free to let us know.

Regards,
Rick Tan
TechNet Subscriber Support
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Rick Tan

TechNet Community Support

_{Thursday, February 9, 2012 9:05 AM}

Thanks for your answer.

It seems that it is only every 3rd time it takes long. Maybe more random.

Br
Steen

_{Friday, February 10, 2012 7:50 AM}

Hi Rick

Thanks for your suggestion.

I think I close this case :-) I was wrong, this is not DHCP related as I knew earlier :-)

I can't reboot the switch. There are some 5000 pc's and 100 locations.

The error is totally random and there are no errors in the eventvwr.

I am now looking at the event 6006 warning, maybe that is the right direction for me to go.

Br

Steen