[Dnsmasq-discuss] same DHCP client on multiple interfaces

[hamish at moffatt.email]

On 29/8/22 18:43, Hamish Moffatt wrote:
> I've got dnsmasq listening on multiple interfaces (two VLANs), and at 
> least one client that is also on both VLANs at once. The client has 
> the same MAC address on both VLANs. I'd like to assign an IP address 
> on each VLAN via DHCP.
>
> I have the following in my config:
>
> dhcp-host=38:C9:86:40:86:37,192.168.42.18,[::0:18],potoroo
> dhcp-host=38:C9:86:40:86:37,192.168.66.18,potoroo-iotlan
>
> dnsmasq (v2.80, in OpenWRT 19.07) seems to allocate the IP addresses 
> ok, but only the most recently leased hostname requested works. 


I've now got v2.85 (OpenWRT 21.02) and the behaviour has changed - I now 
get IPv6 addresses from both subnets returned for the host name. Only 
the latest IPv4 address leased is returned still though.


Hamish