Combination of 2 scopes. Ex: 192.168.1.1 and 192.168.2.1
We combine these 2 to lease out the ipaddress no matter the network ID
One client can get 192.168.1.1 and another client can get 192.168.2.1
So now when client A wants to talk to client B. they can’t communicate as the network ID’s differ. Now we need to install RRAS on DHCP server.
In a scenario like this we need to have the default gateway as ipaddress of DHCP server.