"Your Raspberry Pi is now running a DNS server, and you can tell your router to use Pi-hole as its DNS server instead of your ISP's default."
This will work but is not the preferred way as you'll be missing out on nice client statistics on the Pi-hole dashboard.
If the clients query the router first, who will forward the requests to Pi-hole, the only statistics that will be displayed on the dashboard will be the queries coming from your router and no client data will be displayed.
Preferred is to have your routers DHCP service push Pi-hole's IP address to its clients as the only DNS server:
If thats not possible because particular settings missing on the router, you can disable the DHCP service on the router and activate Pi-hole's DHCP service as a replacement:
Authored Comments
If you mean Pi-hole's DHCP service, no issues at all.
Mine's been running for close to a year now without a glitch.
"Your Raspberry Pi is now running a DNS server, and you can tell your router to use Pi-hole as its DNS server instead of your ISP's default."
This will work but is not the preferred way as you'll be missing out on nice client statistics on the Pi-hole dashboard.
If the clients query the router first, who will forward the requests to Pi-hole, the only statistics that will be displayed on the dashboard will be the queries coming from your router and no client data will be displayed.
Preferred is to have your routers DHCP service push Pi-hole's IP address to its clients as the only DNS server:
https://discourse.pi-hole.net/t/how-do-i-configure-my-devices-to-use-pi…
If thats not possible because particular settings missing on the router, you can disable the DHCP service on the router and activate Pi-hole's DHCP service as a replacement:
https://discourse.pi-hole.net/t/how-do-i-use-pi-holes-built-in-dhcp-ser…