[Dnsmasq-discuss] DHCP options, in particular setting default route
JD
jd1008 at gmail.com
Fri Aug 21 06:09:46 BST 2009
On 08/20/2009 05:32 PM, Carlos Carvalho wrote:
> JD (jd1008 at gmail.com) wrote on 20 August 2009 15:01:
> >
> >On 08/20/2009 02:43 PM, Carlos Carvalho wrote:
> >> Chris G (cl at isbd.net) wrote on 14 August 2009 11:03:
> >> >I'm pretty sure dnsmasq can do what I want but I'd just like to
> >> >confirm the details of how to do it.
> >> >
> >> >I want dnsmasq to set default routes for DHCP clients, so I need to
> >> >use --dhcp-option, so far so good. However the extra bit I'm not
> >> >quite clear about is that I want to set different default routes for
> >> >different clients.
> >> >
> >> >So I need something like:-
> >> >
> >> > --dhcp-option =<network id>,option:router, 192.168.1.1
> >> >
> >> >for each client (or list of clients given by the network id) that
> >> >needs to use default route 192.168.1.1.
> >> >
> >> >What I'm not quite clear about is what the network id looks like
> >> >and/or if I need to set it myself using other dnsmasq arguments.
> >>
> >> You have to give the netid for the machine in the dhcp-host declaration.
> >>
> >>
> >The network ID can be the MAC address of the machine.
>
> I'm not sure what you mean. The net-id can be set to the mac yes, but
> I think it must be done explicitly in the dhcp-host declaration; the
> manual doesn't say it defaults to the mac if omitted. I'd rather use
> something easier to recognize; here I set it to the hostname.
Well and good - I assumed Chris already knew
"it must be done explicitly in the dhcp-host declaration".
Also, I did not say it cannot be something like the hostname -
I only stated what it can be, and not what it MUST be.
Cheers,
JD
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