[Dnsmasq-discuss] DNS but no DNS Options...

richardvoigt at gmail.com richardvoigt at gmail.com
Fri May 20 17:24:32 BST 2011


On Fri, May 20, 2011 at 10:08 AM, Peter Murphy <peter.murphy at lincor.com> wrote:
> Hi,
>
> I have configured dnsmasq as a Proxy DHCP server. It successfully offers
> Pxe Boot options to all clients.

Huh?  The term is "DHCP relay", and I don't think dnsmasq has that
capability (it can serve addresses through relays, but it can't act as
a relay).

> Unfortunately I also want it to act as a DNS forwarder... When I enable
> port=0 it forwards requests successfully. However if a client is
> rebooted the PXE boot will fail because it is receiving the DNS option
> from 2 DHCP servers, the main DHCP server and my new dnsmasq proxy
> server...  I get a "client does not accept options" error.
>
> So in short my question is, how can I enable DNS on dnsmasq but not
> offer the dns option to clients?

You can set the dhcp option for dns server to the IP address of your
other DNS server if you don't want the clients to use dnsmasq for DNS.

>
> Thanks in advance.
> Peter
>
>
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