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The original was posted on /r/pihole by /u/NoCheetah682 on 2023-08-05 22:26:01+00:00.

Hello, I have configured pihole with keepalived so I had to move the dhcp server back to the router.

Problem 1: router advertises itself as secondary dns

Solution: set secondary dns to same ip as primary dns (pihole vrrp ip). I cannot disable the advertising as I do not have the option on my asus firmware version.

Problem 2: Pihole lost all my dhcp clients hostnames.

Solution: ?

Do I really need to set dhcp reservations in router and dns entry on pihole?

Thanks!

LE: how about using dhcp with both piholes (different blocks) and changing the unbound setting from 127.0.0.1#5335 to vrrpip#5335 ?