So this is a rather simple question I reckon but I need to be pointed in the right direction.
I have two LANs on two different interfaces. 10.0.0.0/24 and 10.0.1.0/24. Hosts on the first network can reach hosts on the second network. This is expected and working as it should. However if I want to isolate the LANs from being able to talk to each other, how would I go about doing that? Is it by using VLANs or are there other ways to achieve this (like ACL)? I should also mention that the LANs need to be able to access the Internet which is on a third interface on the gateway and available through NAT.
Thanks in advance!