# Cab-to-Cab (ZeroTier) - two-torial.xyz
Arcade Games Troubleshooting Guide
Author: two-torial Team

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# ZeroTier for Cabinet-to-Cabinet Play

Warning for CHUNITHM

CHUNITHM has stricter network requirements than other SEGA games and needs a specific subnet. In this guide, we will use the subnet `192.168.196.0` as an example. However, to run CHUNITHM, you must change it to the subnet `192.168.139.0`. If you don't, cabinets set to "FOLLOW THE STANDARD" will fail to connect. You will also need to adjust the `IPv4 Auto-Assign` setting of your Zerotier network accordingly by changing `196` to `139`.

## Installing

Go to the ZeroTier download page. Download and run the Windows installer.
After installation, the program will open automatically in your taskbar.

## Joining a network

Connecting to a network

To join a network on ZeroTier, you will need its 16-digit Network ID.

- Start ZeroTier if it's not already running
- Right click on the ZeroTier icon in your taskbar
- Click on "Join New Network"
- Enter the Network ID
- Click on "Join"

That's it!

Checking your connection

Open your Command Prompt, and run the command `ipconfig`
Your IP address will appear under `Ethernet adapter ZeroTier One [NETWORK ID]` next to `IPv4 Address`

To check if you can successfully reach another computer on the network, run the command `ping [IPv4 Address]` replacing `[IPv4 Address]` with the IP address of the other computer, not your own.

Configuration for segatools

Edit `segatools.ini` with the following content:

    [netnev]
    enable=1
    addrSuffix= The last segment of your ZeroTier IP address (e.g., if your IP is 192.168.196.5, set addrSuffix = 5)

    [keychip]
    subnet=192.168.196.0

    [system]
    dipsw1=1 ;Set this to 1 on the host machine and set this to 0 on all others

Each person must have their own keychip

If you play on a remote network, you likely already have your own keychip.
If not, you can use these example keychips: `A61E-01D02321145` ; `A61E-01A30831145` ; `A61E-01E38091145` ; `A61E-01E46241145`

When starting your game, make sure to allow any Windows Firewall pop-ups (such as for `amdaemon.exe`, `mu3.exe`, `chusanApp.exe`...)

If you didn't see a pop-up

This could mean one of two things.

Either you have already allowed it, and cab-to-cab is working successfully. That's great! No need to change anything.
Or, you denied access, and cab-to-cab isn't working. In that case follow these steps:

- Open the Windows Control Panel
- Click on `System and Security`
- Click on `Windows Defender Firewall`
- On the left side, click on `Advanced settings`
- In the new window, click on `Inbound Rules` and look for your game's executables
- Right click on one of them, then click on `Properties`
- Select `Allow the connection` then press `OK`
- Repeat this for all game executables

Alternatively, you can disable your firewall for both public and private networks. Please note that this should only be a temporary measure for testing, as it poses a security risk to your computer.

Configuration for spice2x

- Open `spicecfg.exe`
- Navigate to the `Development` tab
- Enter your ZeroTier IP in the `Preferred NetAdapter IP` field
- Enter `255.255.255.0` in the `Preferred NetAdapter Subnet` field

## Creating a network

- Go to my.zerotier.com and create an account
- Create a network
- Click on its name in the list to configure it

About your Network ID

Your Network ID is displayed on your account's homepage, and in the configuration menu.
This allows you and others to join your network.

If your network is set to `Public` then anyone with it can join it. Treat it like a password.

### Network configuration

Following tabs correspond to the ones found in the configuration menu, follow both "Basics" and "Advanced"

BasicsAdvanced

Name

Either keep the default random name, or rename it to your liking.

Access Control

- Private: This is the default option and will require you to accept people who want to join your network
- Public: Recommended, anyone with the Network ID can join without authorization

Managed Routes

Delete the already existing entry.
Under "Add Routes", set "Destination" as `192.168.196.0/24` then press "Submit".

IPv4 Auto-Assign

Delete the already existing entry.
Under "Add IPv4 Address Pools" set "Range Start" as `192.168.196.1` and "Range End" as `192.168.196.254` then press "Submit".

You should end up with this:

July 5, 2025