Pi-Hole VLAN advice using 05-custom.conf or define VLAN interfaces

[yubiuser]

I use the following lines to send MAC and IP info to my upstream Pihole (10.0.1.5)

"service": {
		"dns": {
			"forwarding": {
				"options": [
					"add-mac",
					"server=10.0.1.5",
					"add-subnet=32"
				]
			}
		}
}

@Kopernikus

There's only 1 thing I'm not sure off, in my current config I have rules setup in my config.gateway.json to ctach devices that have hardcoded DNS to redirect them to the pihole and also masq the connection.

I had a similar approach once but decided to block non-router/pihole DNS traffic completely. So far all devices (google) fell back to the DHCP announced DNS servers. You'r approach should work too, but I think in such cases they will appear in your pihole as if coming from your router (including the MAC?) and EDNS(0) will not work with redirected traffic.

[Kopernikus]

@yubiuser

I use the following lines to send MAC and IP info to my upstream Pihole ( 10.0.1.5 )

"service": {
		"dns": {
			"forwarding": {
				"options": [
					"add-mac",
					"server=10.0.1.5",
					"add-subnet=32"
				]
			}
		}
}

Ok, thx.
Do you think adding a second server IP would work? (I have 2 Pihole's)
So, you've set all you vlans to default dhcp dns, and changed the ones from your WAN to the Pi-Hole?

[yubiuser]

@Kopernikus

Do you think adding a second server IP would work? (I have 2 Pihole's)

I would start with one and see how it goes. I'm not 100% sure about the syntax, but guess a second DNS server needs a second server= line.

@Kopernikus

So, you've set all you vlans to default dhcp dns, and changed the ones from your WAN to the Pi-Hole?

Exactly.

[Kopernikus]

Hi,

I've got it all working after a factory reset of my Ubiquiti switch.
The solution provided by @deHakkelaar as response to my original post seems to be working perfect.
Except that the vlans need to be set in a vlans in file dnsmasq.d folder instead of directly into the dnsmasq.d file. Also there's no need the install the vlan package or 802.1q mod.

Thx!