we are developing an industrial network where we must to guaranteed three separated LAN (LAN1, LAN2 and LAN3, please see the attached image below).
Our client want the networks to be separated, so packets from one of the LAN shouldn't be transmitted on the other two LAN, except for several Modbus TCP/IP connections between elements (PC and a ADAM IO module) placed on diferent LAN.
- Is this possible via managed Switch? VLAN would be the correct way? Can I configure three VLAN and some port forwarding for this modbus tcp links?
We will use the EKI-7656 managed switch from Advantech.
Keeping separated networks is our main client requirement and I'd like to ensure this with a correct switch configuration.