That is the very 1st thing I tried however the address is still pingable.
Is this because the router is not my dns?
The way I have it set up is I run unbound which uses cloudflare as upstream on the router, and 2 pi-holes. The dhcp on the router assigns the 2 pihole addresses as dns servers, and each pihole queries the router as the only upstream server.
on the piholes I use dnsmasq redirects like this to return my router's ntp when any of the timeservers my smart sockets query thousands time an hour are queried
address=/ntp-g7g.amazon.com/192.168.1.1
address=/kindle-time.amazon.com/192.168.1.1
address=/time1.google.com/192.168.1.1
etc
could i use this to redirect the ip to some nonexistent ip in order to block access to it ?