[Dnsmasq-discuss] Assigning DHCP ranges based on incoming network
interface
Simon Kelley
simon at thekelleys.org.uk
Tue Jan 1 20:44:05 GMT 2008
Lars Noodén wrote:
> What is the established method for assigning DHCP ranges based on
> incoming network interfaces?
>
> I have 5 network interfaces (sis0 - sis4), where each should be serving
> a different subnet. e.g.
>
> sis0 10.122.222.0/24
> sis1 10.122.224.0/24
> sis2 10.122.226.0/24
> sis3 10.122.228.0/24
>
> Can that be done with a single instance of DNSmasq?
>
Just give dnsmasq five dhcp-ranges[1], one for each interface. It knows
the address and netmask of the interface, so it can decide which range
is needed for any incoming request.
eg:
dhcp-range=10.122.222.1,10.122.222.100
dhcp-range=10.122.224.1,10.122.224.100
etc...
[1] actually, you can have more, with multiple ranges for single
interface, but you need at least one for each interface.
Cheers,
Simon.
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