eWON Cosy 131 Firmware 14.5s1

I need for remote users to be able to authenticate to a server that is only accessible on the WAN side of the eWON. Specifically I need them to be able to login to my FactoryTalk Network Directory.

I’ve used the NAT 1:1 WAN side to map IP addresses for devices that physically exist on the LAN side of the eWON so they are visible to the WAN side, but is there a way to take a server that is accessible to the WAN side of the eWON and make it visible through the VPN tunnel? Like a Reverse NAT?

No, it’s not possible to go from the VPN network to the WAN network. You would need to work something else out, maybe add an adapter on the server that’s on the LAN network?