The only devices on this particular LAN will all have public IP addresses. Also the public IP address will be configured directly on the machine,,, so we will not translate private/public IP addresses. If we use NAT,, we would have to translate the public IP on the WAN to the public IP on the LAN.
The only security feature I expect on the gateway is an access list.
I don't really know much about networking, so I am sorry if this question is generic.