How do I get DHCP discovery to ignore one of my subnets?

Configuration
1

I’m running Home Assistant OS on an Raspberry Pi. I have both interfaces enabled (wired and wireless) and on different subnets. All my IoT devices are on the wireless subnet.

Both interfaces are configured for “automatic” (DHCP) setup. I have changed the “Network adapter” setting to use the wlan0 interface.

How do I get DHCP discovery to stop finding devices on my wired subnet?

2

Remove the Ethernet cable feeding the subnet.
Change the IP address.
Add another AP or Router.
Take your pick.

3

I’ve dug into the source far enough to know that the homeassistant core is using aiodiscover, but I don’t even see a way to stop aiodiscover from not walking all the enabled interfaces.

4

Since aiodiscover is determining the network to scan based on the route to 10.255.255.255, it looks like I can set a route to the broadcast network via my wlan on the HA host.