DHCP option 52 from DHCP server

Glenn Satchell glenn.satchell at uniq.com.au
Mon Jun 6 10:48:30 UTC 2016

On Mon, June 6, 2016 8:05 pm, A.L.M.Buxey at lboro.ac.uk wrote:
> Hi,
>>    I am trying to make my DHCP Server send DHCP option 52. But I have
>> not
>>    succeeded still. Any suggestion on the dhcpd.conf will be of great
>> help.
> I'd verify with eg tcpdump that the DHCP info being returned to the client
> is what you expect (check contents) and likewise, check with tcpdump that
> the
> client is talking/able to talk to the server and able to get that file.
> alan

While you're looking at tcpdump, check that the client is asking for
option 52. To avoid confusing a client, the dhcp server only sends the
options the client asks for.

If it's the ISC dhclient, you want something like

    also request dhcp-option-overload;

See dhclient.conf man page in this case.

Other clients will do something similar.


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