What I'm going to ask may be trivial but I really need to understand cause my teacher is confusing me!
That's the problem. I got 2 private networks
The first is a class C network and the address is 192.168.1.0/24 (I'll call this C1)
The second is a class A network which I divided in two subnets: 10.1.0.0/16 (A1) and 10.2.0.0/16 (A2)
Now I got one router between A1 and A2, and another between A2 and C1. I've configured the routing so that packets can go from A1 to A2 and from A2 to C1. Then teacher told me: "Router between A1 and A2 is ok, but A2 and C1 can't communicate cause they are different networks! You need to set up NAT in that router."
And here is the question: why do I have to use NAT here? I can't figure out why NAT is needed between two private networks!
Thanks for your help