dhcpd trouble shooting utilities
Patrick Asselman
iceblink at seti.nl
Tue Nov 20 08:52:11 UTC 2012
On 2012-11-19 20:36, Gene Heskett wrote:
> Greetings;
>
> I gave the missus a Nook Color a year ago for Christmas, set it up to
> access my AP here in the house & even bought a book at the time.
>
> But then, since she uses the crossword generator in it more than
> anything
> else, I disabled the radio to save on the battery life, which w/o the
> radio
> can be a couple weeks.
>
> But, I turned the radio back on, and while the nookcolor does appear
> to
> negotiate the WPA2-PSK password stored just fine, but then reports
> that
> dhcp is running forever.
>
> So my question is, do we have any tools to analyze the dhcpd traffic
> and
> show me whats wrong? AFAIK its working for my lappy, but it, from
> where it
> normally lives in the shop, would be coming in thru another wirelass
> AP in
> the shop, so its requests for dhcp service would actually be coming
> into
> what I think is the only active server here via the routers WAN port,
> not
> the radio.
>
> There is so much to know about this its easy to lose track of the
> tree in
> all this forest of networking stuffs. I suspect that somehow, in
> attempting to improve the caching of dns lookups on this, the main
> machine,
> and have somehow managed to have it issuing a dhcpd response that
> clashes
> with the intended server in this router/AP.
>
> But I need to tool to analyze this.
>
> Thanks folks.
>
> Cheers, Gene
In the tradition of this mailing list I should probably advise you to
take a different approach, but I'll leave that for others.
Wireshark can do it:
http://wiki.wireshark.org/DHCP
Best of luck,
Patrick.
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