Apple Airport port forwarding

FYI ... A DMZ is basically used to bypass the router's NAT "firewall" to allow ALL ports one the router to be opened to/from the Internet for a particular device on your local network. If you use a DMZ, then there is no need to configure port mapping for that same device.

In your setup, you have some local device @ IP address 10.0.1.253 in the DMZ. What device is this? It appears not to be your MC server, which you stated is at IP 10.0.1.78.

So, you have a number of choices to make:

1. Do you want this other device OR your MC server to be placed in the DMZ?
2. If not in a DMZ, you would then need to configure whatever device for port mapping/forwarding. Will this be this other device, OR your MC server? The key, again, is a device is either configured to be in a DMZ or for port mapping, NOT both simultaneously.

Also, per your provided images, it appears that your ISP is providing you with a public IPv4 address, but we don't know if it is a dynamic (most common with consumer-grade Internet service) or static (most common with business-grade service). Which is your ISP providing you?

DMZ must use an available IP.. 256 exceeds the limits.. for this setup 254 is the last usable address so the setup as per your Airport utility is 253.

I copied the bit directly out of your screenshot.. it is important to be accurate about IP setup as just like a phone number. one wrong digit means the wrong person.. or no person at all.

IllHyperion2144 Said:

"Apple Airport port forwarding: So my problem is that while trying to port forward for a game server I have port forwarded on the firewall of the pc, and on my apple airport. I put the port (25565) for both port options and put my ip in. I went to check portchecktool.com and it says that the connection is timed out any idea what it is and how to fix it?"

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Go Here: Trouble with Port Forwarding / connection timed out error - Comment 14 - Mindcraft Forum

Portchecktools are near to useless.. check with actual game and see if you can get server working.

You don't port forward on the computer.. all you do is allow access on the port through the firewall.. but that it probably just semantics. As long as the Firewall is open on port 25565.

Post screenshots if you need more help.. if whatever you are doing is not working for actual game connection. It is much easier if we see the actual setup of the airport.

Also you need to confirm you have a public IP on WAN of the router that is identical to what you find in google search of "what is my IP" which will show the IP of packets received for the query.. if they don't match you have a problem that will need fixing before anything else can work.

BTW the Apple routers were designed almost as if games and game consoles did not exist. I suppose Apple thinks only in terms of Apple.. so since gaming was not something big on their sales lists.. they took the typical Apple approach .. mind over matter.. we don't mind.. you don't matter.

+1 with LaPastenague's comment that port checking utilities are next to worthless.

In order to access data on hard drives on my home network from a remote location over the Internet, my AirPort router has to be set up to port forward (Apple calls it port mapping) port 548 for example.

If I'm at a remote location and I'm connecting back to the home network, I can access the data on the hard drive........so port 548 must be open.......otherwise I would not be able to even connect to the hard drive.

But, if I use one of the popular "port checkering" utilities, each one of them tells me that port 548 is closed. But, it can't be because I'm connecting back to the hard drive on the network with no problems.

I think you meant to respond to LaPastenague, who asked for some specific details about your network......along with screenshots from AirPort Utility of the setup.

I was only commenting that it is often possible to have port settings set up correctly, but the "port checkers" will tell you they are not, so best to ignore the port checking stuff.

I will offer one comment though.......Apple routers were never designed for gamers. I think you need a router that includes a UPnP feature, which stands for Universal Plug and Play........a feature that will automatically open the correct ports for the application that you are using. But, it's your call.

We are on opposite sides of the world.. so it does take a while at times to give you answers.

Also getting old.. and crotchety.

Thanks for the screenshots.

It helps because some of the details can easily get missed.

I don't see any issues in the setup except.. you have set DMZ. Is this required?

DMZ .. apple term is default host.. but I will stick to DMZ.. means all unconnected incoming packets go to 10.0.1.253. That is your server device.. not 10.0.1.6

The port forward goes to 10.0.1.6

I am not sure which has priority. In other words a packet seeking a connection on port 25565 arrives at 47.x.x.x looking to make connection.. Does the Airport DMZ grab it and send it to 10.0.1.253 or does port mapping get it and send to 10.0.1.6

I have not done the test to see.. but in general use either DMZ or port forwarding not both..

What do you have connected at 10.0.1.253.. for example a second router.. that is another cause for trouble.

If that does not work.. just as a test.. and I am not sure how much cable this will take and so might be a request more easily made than accomplished.. plug the server pc directly to the internet connection.. you will need to power cycle the modem for 10-15min .. ensure you have a public IP directly onto the computer and test that the server is working remotely. This should work without problems.. if it does you have some bigger issue with ISP.

Then you need to swap back to current setup.. so a bit of work on your part.. but it ensures everything is working if you bypass the airport and the rest of the gear.

That would be the first thing to try.

Smart home setup is typically the kind of thing that would use DMZ.. but only because it makes life easy in not needing to do proper port forwarding.

Another possible solution I did not directly state but is implied is to remove the current port mapping.. and reset the DMZ to 10.0.1.6. Then power cycle the works.. make sure the PC is still 10.0.1.6 and check your public IP as it will change on each occasion you shut down and restart the modem usually .. and then maybe every 24 hours.. you will need to setup DDNS for longer terms.

DMZ works by shunting all packets without NAT connections to the designated IP. Now this is actually not good for security.. long term you don't want DMZ acting in this way unless the computer or host has separate vlan to isolate it from rest of the network. It is much better to port forward (map in applespeak) only those ports you require.

Hint......LaPastenague likes screen shots......lots of them.....of your setup from AirPort Utility.