DNS Settings for routed subnets
I'm currently implementing routing within our network, via a subnet range on each VLAN for a specific set of devices - such as a VLAN for Servers, VLAN for Management Ports on Switches Devices, VLAN for VoIP etc.
My question is, what's the best way for defining the DNS Settings for devices, in regards to, do I add a IP address to the adaptor for each of our DNS Servers for each VLAN?
So if I have:
VLAN 1, range 172.16.0.0 to 172.16.7.255
VLAN 2, range 172.16.8.0 to 172.16.15.255
VLAN 3, range 172.16.16.0 to 172.16.23.255
VLAN 4, range 172.16.24.0 to 172.16.31.255
Our DNS Server IP Adaptor will have an IP for each VLAN, such as 172.16.0.2, 172.16.8.2 etc.
Devices in VLAN 1, where they require DNS Settings inputted would have 172.16.0.2, Devices in VLAN 2, would have 172.16.8.2
Is this best? Or simply have them pointing to the IP's even if they are on seperate subnets.