Changing the realm in DHCP without changing the address of the DHCP server. Perhaps without vlan?

Question

System administration

Hello everyone, the following question arose. There is DHCP with address 192.168.1.2. when adding a new realm 10.8.121.0/24, clients do not receive an address. When the area 192.168.1.0/24 is activated, everything works fine ... Where to dig so that clients start receiving addresses from network 10? The network is simple without vlanov and so on.

Answer 1

Add an additional ip to the dhcp server from under the 10.x network
It is even better to make it primary and transfer 192.x to additional ones

Answer 2

https://qna.habr.com/q/1096772 already answered