iOS 18 Connection Error

[morellexf13]

I'm looking for a hint on what could be happening here...

Test environment

• Sequoia 15.2.
• iPhone Xs iOS 18.3

Describe the bug
Can't start tunnel connection

To Reproduce

def verify_network_stack(device) -> bool:
    """Verify network stack configuration"""
    print("Verifying network stack...")

    try:
        # Log the address details for debugging
        print(f"Device service address: {device.service.address}")
        address = device.service.address[0]
        ports = [device.service.address[1]]
        print(f"Attempting to connect to {address} on ports {ports}")

        for port in ports:
            try:
                sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
                sock.settimeout(5)
                result = sock.connect_ex((address, port))
                sock.close()

                if result == 0:
                    print(f"Port {port} is open")
                else:
                    print(f"Port {port} is closed")
                    return False
            except Exception as e:
                print(f"Error checking port {port}: {str(e)}")
                return False

        return True

    except Exception as e:
        print(f"Error during network stack verification: {str(e)}")
        return False

def get_devices():
    devices = get_device_list()
    verify_network_stack(devices[0])
    if not devices:
        raise NoDeviceConnectedError()
    return devices


class TunnelCreator:
    def __init__(self, devices):
        self.devices = devices
        self.tunnels_to_create = 1
        self.creating_tunnels_signal_file = None
        self.close_tunnels_signal_file = None
        self.tunnels_addresses_file = None

    def create(self, device_udid=None):
        if len(self.devices) == 1:
            # only one device found
            rsd = self.devices[0]
        else:
            # several devices were found
            if device_udid is None:
                # show prompt if non explicitly selected
                rsd = prompt_device_list(self.devices)
            else:
                rsd = [device for device in self.devices if device.udid == device_udid]
                print(rsd)
                if len(rsd) > 0:
                    rsd = rsd[0]
                else:
                    raise NoDeviceConnectedError()

        if device_udid is not None and rsd.udid != device_udid:
            raise NoDeviceConnectedError()

        if not verify_tunnel_imports():
            return
        asyncio.run(tunnel_task_concurrently(rsd, tunnels_to_create=self.tunnels_to_create,
                                             tunnels_addresses_file=self.tunnels_addresses_file,
                                             creating_tunnels_signal_file=self.creating_tunnels_signal_file,
                                             close_tunnels_signal_file=self.close_tunnels_signal_file), debug=True)

Expected behavior
Tunnel established

Error result

Verifying network stack...
Device service address: ('fe80::4d4:80ff:fe55:ff8c%en6', 58783)
Attempting to connect to fe80::4d4:80ff:fe55:ff8c%en6 on ports [58783]
Error checking port 58783: [Errno 8] nodename nor servname provided, or not known
WARNING:asyncio:Executing <Task pending name='Task-48' coro=<tunnel_task() running at /Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/venv/lib/python3.10/site-packages/pymobiledevice3/cli/remote.py:120> wait_for=<Future pending cb=[_chain_future.<locals>._call_check_cancel() at /Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/futures.py:385, Task.task_wakeup()] created at /Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/base_events.py:429> cb=[gather.<locals>._done_callback() at /Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/tasks.py:720] created at /Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/tasks.py:636> took 0.450 seconds
Traceback (most recent call last):
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/remote-xpc-tunnel.py", line 162, in <module>
    main()
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/remote-xpc-tunnel.py", line 158, in main
    tunnel_creator.create()
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/remote-xpc-tunnel.py", line 107, in create
    asyncio.run(tunnel_task_concurrently(rsd, tunnels_to_create=self.tunnels_to_create,
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/runners.py", line 44, in run
    return loop.run_until_complete(main)
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/asyncio/base_events.py", line 649, in run_until_complete
    return future.result()
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/venv/lib/python3.10/site-packages/pymobiledevice3/cli/remote.py", line 210, in tunnel_task_concurrently
    await asyncio.gather(*tasks)
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/venv/lib/python3.10/site-packages/pymobiledevice3/cli/remote.py", line 120, in tunnel_task
    async with start_tunnel(service_provider, secrets=secrets, max_idle_timeout=max_idle_timeout,
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/contextlib.py", line 199, in __aenter__
    return await anext(self.gen)
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/venv/lib/python3.10/site-packages/pymobiledevice3/remote/core_device_tunnel_service.py", line 758, in start_tunnel
    async with service.start_quic_tunnel(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/contextlib.py", line 199, in __aenter__
    return await anext(self.gen)
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/venv/lib/python3.10/site-packages/pymobiledevice3/remote/core_device_tunnel_service.py", line 380, in start_quic_tunnel
    async with aioquic_connect(
  File "/Library/Frameworks/Python.framework/Versions/3.10/lib/python3.10/contextlib.py", line 199, in __aenter__
    return await anext(self.gen)
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/venv/lib/python3.10/site-packages/qh3/asyncio/client.py", line 99, in connect
    await protocol.wait_connected()
  File "/Users/juan/Documents/GitHub/apptim/ios-remote-xpc-tunnel-creator/venv/lib/python3.10/site-packages/qh3/asyncio/protocol.py", line 129, in wait_connected
    await asyncio.shield(self._connected_waiter)
ConnectionError