The main thing is…
I got a wireless network with a range of 10.1.1.x and Netmask 255.255.255.0 with 20 users and 3 cable connections.
I need to set different static Default Gateways and DNS servers for every user separately under that range (10.1.1.x).
I want to set for example 7 users to use the first cable connection,
next 7 to use the second, and rest to use the third.
The routers of all the cable connections are in 10.1.1.x range.
IP with range like 10.1.2.x would be invisible for the clients.