NAT elimination will indeed allow arbitrary devices to communicate with each other. Whether they do so will depend on the end users. Stateful packet filters wi

NAT elimination will indeed allow arbitrary devices to communicate with each other. Whether they do so will depend on the end users. Stateful packet filters will still be necessary, but those would be end user configurable. Keep in mind that you are thinking about a NAT you control. If your ISP is NATing you as well, you would have a very different impression.