[Dnsmasq-discuss] proxy dhcp does not send dhcp-options

[Jochen Dekeyser]

I previously tried it using only dhcp-option 17, like they do here:
https://help.ubuntu.com/community/UbuntuLTSP/ProxyDHCP

Dhcp-option 17 is the root-path: the path which should be used by the
pxe-client to boot from. This should be proxy dhcp-stuff, not?

Jochen
Op 9 apr. 2012 19:07 schreef "Simon Kelley" <simon at thekelleys.org.uk> het
volgende:

> On 09/04/12 17:59, Jochen Dekeyser wrote:
>
>> I forgot to mention I tried this with version 2.48 on CentOS6 and
>> version 2.52 on Fedora 14.
>>
>> Jochen
>>
>> On Mon, Apr 9, 2012 at 6:46 PM, Jochen Dekeyser
>> <jochen.dekeyser at gmail.com>  wrote:
>>
>>> I already tried to use dhcp-option-force but it does not make any
>>> difference...
>>>
>>> My testcase (= dnsmasq as full dhcp vs dnsmasq as proxy dhcp) was
>>> tested on the same client, so the full dhcp sends dhcp-options, the
>>> proxy dhcp does not send my dhcp-options...
>>>
>>> I now even checked it with Wireshark and the client does ask for all
>>> the specified parameters (and lots of others)...
>>>
>>> Thx for reply!
>>> Jochen
>>>
>>>
>>> On Mon, Apr 9, 2012 at 6:05 PM, Simon Kelley<simon at thekelleys.org.uk**>
>>>  wrote:
>>>
>>>>
>>>> The problem might be that the option numbers in question are not being
>>>> requested by the client. This is easy to fix by using dhcp-option-force
>>>> intsead of dhcp-option, so  that options are sent anyway.
>>>>
>>>> HTH
>>>>
>>>> Simon.
>>>>
>>>>
>>  I just looked at the code, and it doesn't attempt to include
> generally-specified options in the PXE-proxy reply, only the stuff required
> for the PXE protocol. Do you know that what you're trying to do is valid
> (ie send general options via the PXE-proxy reply, rather than have the
> client get them from the server which does address allocation.)?
>
> It may be time to consult the Intel PXE specification. Abandon hope......
>
>
> Cheers,
>
> Simon.
>
>
>
>
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