Automatically creating the necessary inbound port mappings helped remedy this unwanted side effect of NAT. The server side of the NAT-PMP protocol is implemented in Apple's AirPort Extreme, AirPort Express, and Time Capsule wireless base stations, and in the Internet Sharing feature of Mac OS X 10.4 and later.

Configuring clients to use Wide-Area Bonjour. If you just want to see Wide-Area Bonjour browsing in action without having to install the Preference Pane / Control Panel, you can do that by entering an appropriate DNS search domain.To advertise your own services and have more control over the settings, follow the instructions here to install the Preference Pane (Mac) or Control Panel (Windows). Solved: Actiontec FIOS router (MI424WR) breaks Apple's Make sure NAT-PMP or UPnP is enabled (if you are using an AirPort Extreme Gigabit Ethernet base station, click here for information about AirPort Extreme Gigabit Ethernet and NAT PMP). >> I followed the advice I could on how to turn UPnP on for the router - in advanced, under UPnP, check both boxes and selected the "main" option Three Ways to Remotely Access, Control a Mac

The devices I'm working with are: Xbox One, Airport Express, Mac Mini, Macbook Pro, iPad, iPhone. The issue was that my Xbox could connect to my wireless network but not to the Internet, and so I couldn't connect to Xbox Live at all--couldn't download content, access my tabs, nothing.

But Apple also seems to target non-home-users in some cases with their Airport Extreme which makes this decision more questionable. UPnP. But the Airport Extreme lacks one big feature that is really important for many home consumers. That feature is UPnP. Apple obviously supports NAT-PMP. But they don't ship with a UPnP fallback.

I'm trying to set up a network using an AirPort Extreme as a router (connected to the WAN on one end and the LAN on the other). I understand that out of the box I will have a hardware firewall, and the ability to set up DHCP, but am unclear on what the best way to add the capabilities of Lion Server, or if there's even any advantage to doing so.

The NAT Port Mapping Protocol (NAT-PMP) is a network protocol for establishing network address translation (NAT) settings and port forwarding configurations automatically without user effort. The protocol automatically determines the external IPv4 address of a NAT gateway, and provides means for an application to communicate the parameters for communication to peers.