[Dnsmasq-discuss] Detect conflicting DHCP servers

richardvoigt at gmail.com richardvoigt at gmail.com
Fri Mar 9 20:38:07 GMT 2012


Contacting DHCP servers is a task for a DHCP client, not a DHCP server.
 There are a number of scripts available which will send a request and
listen to all responses (not just the first), generating an alert if any
unexpected nodes responded.  Google "rogue DHCP detect".

On Fri, Mar 9, 2012 at 3:25 AM, james garner <jamgarn at googlemail.com> wrote:

> Dear list,
>
> our DHCP requests are handled by dnsmasq on the main server. Every now and
> then a technically illiterate person connects a device to the network that
> by default acts as DHCP-server, may it be a print server or a switch. Is
> there a way to tell dnsmasq to periodically scan for other DHCP-servers and
> give a warning if necessary?
> Thanks
>
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>
>
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