[Dnsmasq-discuss] DHCP multi tenancy

[Simon Kelley]

On 8/18/25 12:49, Kevin wrote:
> Hello
> 
> We need to implement multi tenancy at the DHCP level. It means the same subnet (e.g 10.0.0.0/24) might be used by several clients and both should be able to get a lease for 10.0.0.1.
> 
> We planned to implement this by relying on the Circuit-Id to help us distinguish which subnet to choose from.
> 
> Unfortunately, we did not manage to make it work. Can you confirm this feature (reusing the same subnet several times) is not currently possible?
> 
> Is it something you would be interested to implement / get implemented?
> 
> Thanks for your time

It's probably possible to do this by running multiple dnsmasq processes.

The comments about circuit-id imply that you're using a DHCP relay 
between the client subnets and the DHCP server. Is that correct? If so 
can you configure your relays to relay to non-standard ports?



Cheers,

Simon.