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NAT Issues when playing games on two computers

Scheduled Pinned Locked Moved NAT
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  • R
    Raffi_ @DaddyGo
    last edited by Raffi_ Jul 18, 2020, 6:44 AM Jul 18, 2020, 4:35 AM

    @DaddyGo said in NAT Issues when playing games on two computers:

    then let's see:

    First, create an independent interface for the game machines.
    This can be a physical interface, if you have an empty port on your hardware (NIC), or it can be a separate VLAN (on LAN interface)

    540de5ed-bbd9-4f1f-b532-edbd95f28099-image.png

    Second step, set a fixed IP address on the game machines or you can use dhcp too, if you record the IP addresses of the machines in the dhcp server "static mapping" - in this case run dhcp server on the interface which you created in the first step

    1ab72a84-5525-48f5-b987-f67a1d3d1b2d-image.png

    third step: add the default NAT rule of the interface (game interface), so that the interface has an internet connection, so:

    41204bcd-7b7e-4eb0-bcc4-b6ee384e27cf-image.png

    fourth step: create a hybrid outbound NAT mapping containing the IPs of the gaming machines (with / 32 subnets (no / 24!)), so:

    89e1927b-1a1d-4310-aece-9552938f071b-image.png

    step five: turn on UPnP & NAT-PMP for the game interface ONLY to separate game machines from other vulnerable network components

    0dcdca53-f0d4-4cbf-af36-053100fa88a4-image.png

    when you start a game machine (on this separated game interface) you can check the open ports in the menu: Status / UPnP & NAT-PMP

    b35d94a7-3e95-4eb6-87f0-ca40022b9d44-image.png

    As I mentioned on a firewall, UPnP & NAT-PMP is not a really good thing, so you need to separate this intarface.
    if you have any questions, I am at your disposal

    Thank you very much for these instructions. I finally got my gaming VLAN to come up with NAT Type open. 👍

    I followed the steps exactly and it was perfect except for one thing which messed me up. After the last step, I had to go to Diagnostics > States. I filtered for my Xbox static IP and then I had to Kill the states. Without doing that it kept the old states and kept showing NAT type strict.

    Just wanted to add that in since that could cause headaches for others. By the way, I'm not taking credit for discovering this, I found it in the documentation. I just knew I was missing something!
    https://docs.netgate.com/pfsense/en/latest/nat/static-port.html

    D 1 Reply Last reply Jul 21, 2020, 9:33 AM Reply Quote 1
    • D
      DaddyGo @Raffi_
      last edited by Jul 21, 2020, 9:33 AM

      @Raffi_ said in NAT Issues when playing games on two computers:

      I followed the steps exactly and it was perfect except for one thing which messed me up. After the last step, I had to go to Diagnostics > States. I filtered for my Xbox static IP and then I had to Kill the states. Without doing that it kept the old states and kept showing NAT type strict.

      you're absolutely right...👍
      since, I always restart (NGFW) when such a configuration change (greater extent) is made, I forgot to describe it

      Cats bury it so they can't see it!
      (You know what I mean if you have a cat)

      1 Reply Last reply Reply Quote 1
      • H
        Halsey568 Banned
        last edited by Nov 22, 2020, 7:06 PM

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        • R
          Raffi_
          last edited by Raffi_ Nov 23, 2020, 2:12 PM Nov 23, 2020, 2:10 PM

          This post is deleted!
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          • K
            KylieHodges Banned
            last edited by Dec 8, 2020, 8:36 PM

            This post is deleted!
            D 1 Reply Last reply Dec 11, 2020, 6:21 PM Reply Quote 0
            • D
              DaddyGo @KylieHodges
              last edited by Dec 11, 2020, 6:21 PM

              @kyliehodges
              Hi,

              With Destiny 2, it won't work, sorry 😞 (on the same sub-net)

              Cats bury it so they can't see it!
              (You know what I mean if you have a cat)

              T 1 Reply Last reply Jan 8, 2021, 2:33 PM Reply Quote 0
              • K
                KylieHodges Banned
                last edited by Dec 14, 2020, 3:51 PM

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                • T
                  Truckin @DaddyGo
                  last edited by Jan 8, 2021, 2:33 PM

                  @daddygo said in NAT Issues when playing games on two computers:

                  @kyliehodges
                  Hi,

                  With Destiny 2, it won't work, sorry 😞 (on the same sub-net)

                  So,
                  If I follow your guide I would still get the warning when playing D2 on the PC? What would I need to adjust in order to get rid of that warning?
                  Thanks,
                  Truckin

                  D 1 Reply Last reply Jan 8, 2021, 2:51 PM Reply Quote 0
                  • D
                    DaddyGo @Truckin
                    last edited by Jan 8, 2021, 2:51 PM

                    @truckin said in NAT Issues when playing games on two computers:

                    What would I need to adjust in order to get rid of that warning?

                    Hi,

                    It depends on the philosophy of the different game manufacturers...

                    in general it can be said that there is no problem based on Linux (FW), but here and with D2 this has not been solved yet

                    there is an initiative for it, this will perhaps be a result in 2.5:

                    https://forum.netgate.com/topic/154153/test-request-upnp-fix-for-multiple-consoles-playing-the-same-game-static-port-outbound-nat/67

                    Cats bury it so they can't see it!
                    (You know what I mean if you have a cat)

                    T 1 Reply Last reply Jan 8, 2021, 2:55 PM Reply Quote 0
                    • T
                      Truckin @DaddyGo
                      last edited by Jan 8, 2021, 2:55 PM

                      @daddygo

                      Ah,
                      I see. Well, hopefully, they will provide a resolution.
                      Truckin

                      1 Reply Last reply Reply Quote 0
                      • J
                        JailBird4
                        last edited by Jan 13, 2021, 11:11 AM

                        This post is deleted!
                        T D 2 Replies Last reply Jan 13, 2021, 12:09 PM Reply Quote 0
                        • T
                          Truckin @JailBird4
                          last edited by Jan 13, 2021, 12:09 PM

                          @jailbird4 said in NAT Issues when playing games on two computers:

                          Are you still facing the same issue or you recovered?

                          It's still an issue for myself and playing Destiny 2.

                          J 1 Reply Last reply Jan 20, 2021, 12:50 AM Reply Quote 0
                          • D
                            dmd1234498 @JailBird4
                            last edited by Jan 13, 2021, 2:32 PM

                            @jailbird4 I just play with strict NAT types now. Obviously just a limitation of the software. Software which I didn't pay anything for, so I'm not too worried about it lol

                            J 1 Reply Last reply Jan 15, 2021, 8:45 AM Reply Quote 0
                            • J
                              JailBird4 @dmd1234498
                              last edited by JailBird4 Jan 15, 2021, 8:45 AM Jan 15, 2021, 8:45 AM

                              This post is deleted!
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                              • J
                                JeGr LAYER 8 Moderator @Truckin
                                last edited by Jan 20, 2021, 12:50 AM

                                As I did a quick visit the last weekend with our youngest in D2 I can't find any problem even when not having pure NAT. We've played with two PS4s with both NAT Type 2 (not strict/3 but not pure/1 either) without a hitch. Got together, got into PvE/PvP - don't see problems.

                                Don't forget to upvote 👍 those who kindly offered their time and brainpower to help you!

                                If you're interested, I'm available to discuss details of German-speaking paid support (for companies) if needed.

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