DHCPD and Windows question

[Todd Littlefield]

I finally got some time to sit down with Wireshark and compare the bootp 
packets between the D-Link
and the Linux box...  The first thing that jumped out as different was 
the source address on the DHCP Offer
packets.

D-Link:  192.168.1.1
Linux:     127.0.0.1

So, something wasn't right.  I began mucking around with a bunch of 
different settings based on the
dhcpd.conf(5) pages.  None seemed to work...

After looking a little closer at the server-identifier tag, it was 
misconfigured...  I was using the name instead of
IP address.  The man pages are a bit confusing though...  It states:

Theserver-identifier  statement

          *server-identifier*  hostname*;*

          The  server-identifier statement can be used to define the value that
          is sent in the DHCP Server Identifier option for a given scope.   The
          value  specified*must*  be an IP address for the DHCP server, and must
          be reachable by all clients served by a particular scope.



So, it needs to be set to the --hostname-- but they really mean --IP--  
Why they didn't just specify it as:


Theserver-identifier  statement

          *server-identifier*  *address;*


I guess we will never know...  Right below that is the server-name tag, 
which really is the name.  So, if anyone
else runs into this problem, the answer is RTFM --Carefully-- before 
adding things to the config.

Thanks to everyone for their help!

- Todd



On 1/30/2010 11:03 PM, Brian St. Pierre wrote:
> On Fri, January 29, 2010 7:10 pm, Todd Littlefield wrote:
>    
>> If I disable the daemon on the server and use the one on the router,
>> the Windows boxes are happy...  But that makes me unhappy.  I'm at my wits
>> end trying to get it figured out.
>>      
> Can you get a wireshark capture of (a) the broken request and (b) the
> working request?
>
> Then compare the two and change whatever is needed in your config (one
> thing at a time) to make (a) look more like (b).
>
> --
> Brian St. Pierre
>
>    

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