I WANT HELP OR DOCUMENATION ON THE FOLLOWING

I WANT TO CREATE A LOCAL NETWORK WITH
NET ID 192.168.10.0/22 IN LINUX ENVIRONMENT.
MINIMUM OF 4 SUBNET REQUIRED, EACH SUBNET CONTAIN MINIMUM OF 75 MACHINES.MAKE A LINUX MACHINE IN EACH SUBNET A ROUTER. EACH SUBNET SHOULD CONTAIN ONE DNS,
ONE DHCP SERVER. FIX SCOPE BY ONESELF.