Assigning Private subnets to interface

[jifitz]

I have created different subnets and assigned them to different interfaces but I can still get to each subnet no matter what it may be, A B or C. I want subnet A not to be able get to subnet B. Accept for certain shared resources in common. Example

X3 192.168.1.0
X4 192.168.2.0
X5 192.168.3.0

Shared resources maybe on another subnet.

X0 172.16.0.0

Any help would be greatly appreciated.

 

[Dinkytoy]

What model Sonicwall do you have?

Have you checked the Zones that the interfaces are designated and any relevent ACLs within the firewall?