I am looking to set up a small test bed on VMware ESXi. It would have a Firewall VM with multiple interfaces and some Desktops and Server VMs behind that firewall. My experience until now has been with their workstation product and usually I just use the NIC cards in bridge mode.
Now in ESXi, when I set up the Firewall VM with multiple interfaces(say one each for the WAN, LAN and DMZ), how or in what mode should I be setting up the different interfaces? And then how should I force the devices behind the firewall to only connect to a specific interface of the firewall and not to any other interface. I guess in short what I am asking is how do I do the virtual equivalent of physically wiring a device behind the firewall to a specific interface on the firewall. I tried searching for some guides, but all I get is extended discussions on virtual switching. I guess there is some switching involved but I cannot pinpoint exactly what I would need to do in my specific case. The guides I have read until now seems overkill for my small test bed. Please let me know if the set up is possible without any sophisticated switching involved.