• Get the latest Lanemu release by clicking Download under Packages

  • https://gitlab.com/Monsterovich/lanemu/-/releases

• Extract the downloaded Lanemu archive to a new folder called Lanemu

• Navigate to the OpenJDK page by clicking "Ready for use" JDK version

  • https://jdk.java.net/

• Download OpenJDK

  • Windows

    • Click zip under Builds -> Windows / x64

  • Linux

    • Click tar.gz under Builds -> Linux / x64

  • Older OSes

    • https://gitlab.com/Monsterovich/lanemu/-/wikis/Supported-JDK-JRE-versions

• Extract the downloaded OpenJDK archive to Lanemu -> build folder

  • Rename the extracted OpenJDK folder to jdk

• Windows : Install Lanemu network adapter

  • Navigate to Lanemu -> driver folder

  • Right click add_adapter.bat

  • Click Run as administrator

• Windows : Make sure Lanemu.exe is always run as administrator

  • Navigate to Lanemu -> build folder

  • Right click Lanemu.exe

  • Click Properties

  • Select Compatibility tab

  • Check Run this program as an administrator

  • Click Apply and OK

• Click the Options icon and select Global tab

  • Specify Your Name

  • Specify any port in "Listen on Port" (e.g., 6666)

    • At least one user should enable UPnP or forward this port on the router

      • It is recommended to forward this port for both TCP and UDP

      • If you wish to only use TCP

        • Select Network tab and uncheck Use UDP for peer to peer traffic

    • If nobody can forward a port (stuck behind NAT)

      • All users can use hyper-nat (make sure everyone uses the same port)

        • Windows

          • Download the latest forwarder.zip under Assets

            • https://github.com/AnEntrypoint/hyper-nat/releases/latest

          • Extract forwarder.zip to Lanemu -> build folder

        • Linux

          • Install npm

            • https://command-not-found.com/npm

          • Download the latest Source code (tar.gz) under Assets

            • https://github.com/AnEntrypoint/hyper-nat/releases/latest

          • Extract hyper-nat.tar.gz to Lanemu -> build folder

      • Alternatively, one user (Host PC) can create a tunnel (e.g., playit.gg)

        • Lanemu supports TCP+UDP or TCP-only tunnels

          • https://github.com/anderspitman/awesome-tunneling

        • Tunnel type requirements (TunnelIP:TunnelPort -> 127.0.0.1:LanemuPort)

          • TCP+UDP (e.g., tcp-udp-tunnel.gl.at.ply.gg:5359 -> 127.0.0.1:5359)

            • TunnelPort and LanemuPort must be identical

          • TCP-only (e.g., tcp-tunnel.gl.at.ply.gg:5359 -> 127.0.0.1:6666)

            • TunnelPort and LanemuPort can be the same or different

            • Host PC user must disable UDP option in Lanemu

              • Select Network tab and uncheck Use UDP for peer to peer traffic

  • Click OK

• Steps for Host PC

  • If you are using hyper-nat

    • Modify hyper-nat options.json file

{

    "schema": [

        {

            "mode": "server",

            "proto": "udp",

            "port": "6666",

            "host": "127.0.0.1",

            "secret": "SomeUniqueTextThatIsTheSameForAllPorts"

        },

        {

            "mode": "server",

            "proto": "tcp",

            "port": "6666",

            "host": "127.0.0.1",

            "secret": "SomeUniqueTextThatIsTheSameForAllPorts"

        }

    ]

}

• • • Launch hyper-nat

      • Windows

        • Open hyper-nat.exe

      • Linux

        • Open another Terminal in Lanemu -> build -> hyper-nat folder

          • npm install

          • npm run start

    • Windows : Allow hyper-nat through Windows Firewall

      • Check both Private and Public networks

      • Click Allow access

    • Copy your public key from the Console / Terminal

      • Windows

        • Highlight it and press CTRL + C

      • Linux

        • Highlight it and press CTRL + SHIFT + C

    • Send your public key to every Client

  • Create a network

    • Click the New Network icon

    • Select Simple tab

      • Specify Network Name

    • Select Advanced tab

      • If you are using UPnP / Port Forwarding or Tunneling Services

        • Specify your PublicIP:Port or TunnelIP:Port in Known Hosts

          • Example: 82.129.80.111:6666 or tcp-tunnel.gl.at.ply.gg:5359

      • If you are using hyper-nat

        • Specify these network settings

          • Known Hosts: 127.0.0.1:6666

          • BitTorrent Tracker: Empty

          • Enable DHT search for peers: No

    • Click OK

  • Windows : Allow OpenJDK through Windows Firewall

    • Check both Private and Public networks

    • Click Allow access

  • Create an invitation

    • Click the Invite Someone icon

    • Check Allow invitation of others

    • Click Generate Invitation

    • Click Save to a File

    • Click Close

  • Send the invitation file to every Client

• Linux : Open another Terminal to add Broadcast and Multicast routes

  • sudo ip route append 255.255.255.255/32 via 0.0.0.0 metric 0 dev tap0

  • sudo ip route append 224.0.0.0/4 via 0.0.0.0 metric 0 dev tap0