IP over USB

Connect terminal and ECR with a single USB cable and route all traffic through the ECR.

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Local integration with AIC on the ECR computer

IP over USB is described for Local integration with AIC installed on the ECR computer. The terminal connects to AIC on the ECR.

With IP over USB, one USB cable connects the terminal to the ECR. The terminal gets a private network connection through the ECR, and all internet traffic from the terminal goes through the ECR's connection. Windows and Linux ECRs are supported.

Benefits

  • Simple installation: one USB cable, no extra network cables.
  • Controlled connectivity: all traffic goes through the ECR.
  • Works with all Aera services: transactions and terminal management.
  • Backup: the terminal can keep taking offline payments even if the store network fails.
  • Faster: IP-based communication means faster downloads and installation.

How it works

The terminal connects to the ECR with the RNDIS protocol, which creates a private TCP/IP network over USB. You don't need to install drivers on the ECR.

ConnectionHow
Terminal to AICTerminal connects to AIC on the ECR, port 8001
ECR to terminalECR connects to AIC on 127.0.0.1, port 8002
Terminal to AeraECR routes the traffic (NAT). On Windows this uses Internet Connection Sharing (ICS)

IP addresses

DeviceIP address
Terminal192.168.137.129 (static)
ECR USB network adapter192.168.137.1. This is the terminal's gateway and DNS

On Windows, this is standard ICS behaviour. On Linux, you must set it up yourself. The terminal must also reach everything in Network requirements.

Security

All traffic from the terminal to Aera is encrypted. We recommend blocking unknown USB devices and only allowing supported terminals:

TerminalVendor ID (VID)Product ID (PID)
Ingenico RX50000x26f10x6064

You can also allow specific terminal serial numbers. You will then need to update the list every time a terminal is installed or swapped.

Requirements for the ECR

  • Reliable Internet Connection Sharing (Windows).
  • Able to handle two network interfaces: the physical one and the virtual one for the terminal.

Aera provides a setup guide (below) and supports you with the setup. Contact your Aera contact.

Set up IP over USB

Steps can differ between Windows and Linux versions and POS software. Always check the latest documentation for your platform.

1. Connect the cable

Connect the terminal to the ECR with USB before you start.

2. On the terminal (technician)

  1. Go to Settings → Network & Internet → Hotspot & Tethering.
  2. Turn on USB-PC Internet share.
  3. Select your Windows version. For Windows 11, select Windows 10.
  4. Select Next, read the instructions and select OK.

3. On the Windows ECR

  1. Open Control Panel → Network and Internet → Network and Sharing Center → Change adapter settings.
  2. Find the new adapter. It is called something like Ethernet 2 (Remote NDIS based…).
  3. Right-click your main network adapter and select Properties → Sharing.
  4. Select Allow other network users to connect through this computer's Internet connection.
  5. In the list, select the terminal's adapter (for example Ethernet 2) and select OK.
  6. Make sharing survive restarts. Add this registry value:
    • Path: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\SharedAccess
    • Name: EnableRebootPersistConnection
    • Type: DWORD
    • Value: 1
  7. In Services, set Internet Connection Sharing to Automatic (Delayed Start).

4. Install the terminal

During terminal installation, select TEM call instead of autoinit, then Check for updates.

Tips

  • Check that firewall rules allow traffic between ECR and terminal.
  • Some settings may reset after a restart. Consider automating them.
  • Always follow security guidelines for network sharing.

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