diff --git a/nmcli_configurator.py b/nmcli_configurator.py
new file mode 100644
index 0000000..4c97687
--- /dev/null
+++ b/nmcli_configurator.py
@@ -0,0 +1,153 @@
+import subprocess
+
+def detect_rt_tables_path():
+    return "/etc/iproute2/rt_tables"
+
+def list_connections():
+    output = subprocess.check_output(["nmcli", "-t", "-f", "uuid,name,type,device", "connection", "show"]).decode()
+    print("\n[DEBUG] Surowe dane z nmcli:")
+    print(output)
+
+    conns = []
+    for line in output.strip().splitlines():
+        parts = line.strip().split(":", 3)
+        if len(parts) < 4:
+            continue
+        uuid, name, typ, dev = parts
+        if typ.strip() in ["ethernet", "802-3-ethernet"]:
+            dev = dev.strip() if dev.strip() else "<brak>"
+            conns.append({"uuid": uuid, "name": name, "device": dev})
+    return conns
+
+def prompt_config(conn):
+    default_iface = conn['device']
+    if not default_iface:
+        default_iface = input(f"Podaj nazwę interfejsu dla połączenia '{conn['name']}' ({conn['uuid']}): ").strip()
+
+    print(f"\n--- Konfiguracja dla interfejsu: {default_iface} ({conn['name']}) ---")
+    ip = input("Adres IP/maska (np. 10.87.2.121/24): ").strip()
+
+    # domyślna brama z IP
+    ip_parts = ip.split(".")
+    default_gw = f"{ip_parts[0]}.{ip_parts[1]}.{ip_parts[2]}.1" if len(ip_parts) >= 4 else ""
+
+    gw_input = input(f"Brama (enter = brak, d = {default_gw}): ").strip().lower()
+    if gw_input == "d":
+        gw = default_gw
+    elif gw_input == "":
+        gw = None
+    else:
+        gw = gw_input
+
+    third_octet = ip_parts[2] if len(ip_parts) >= 3 else "100"
+    default_table = third_octet
+    default_prio = third_octet
+
+    table = input(f"Numer tablicy routingu [domyślnie {default_table}]: ").strip() or default_table
+    prio = input(f"Priorytet dla rule [domyślnie {default_prio}]: ").strip() or default_prio
+
+    return {
+        "uuid": conn["uuid"],
+        "iface": default_iface,
+        "ip": ip,
+        "gateway": gw,
+        "table": table,
+        "priority": prio
+    }
+
+def ask_disable_ipv6(devices):
+    choice = input("\nWyłączyć IPv6? (tak/wszystkie/nie/[lista interfejsów oddzielona spacją]): ").strip().lower()
+    if choice in ["tak", "yes", "y", "wszystkie"]:
+        return set(devices)
+    elif choice in ["nie", "no", "n"]:
+        return set()
+    else:
+        return set(choice.split())
+
+def ask_main_gateway_iface(devices):
+    print("\nDostępne interfejsy: " + ", ".join(devices))
+    main_iface = input("Podaj nazwę interfejsu, który ma mieć bramę główną (main), enter jeśli żaden: ").strip()
+    return main_iface if main_iface in devices else None
+
+def generate_commands(configs, disable_ipv6_ifaces, main_iface):
+    lines = []
+    rt_tables = set()
+
+    for c in configs:
+        uuid = c["uuid"]
+        iface = c["iface"]
+        ip = c["ip"]
+        gateway = c["gateway"]
+        table = c["table"]
+        priority = c["priority"]
+
+        lines.append(f"# Konfiguracja: {iface} ({uuid}) → {ip} gw {gateway or '-'} table {table}")
+
+        # Ustawienia podstawowe
+        lines.append(f"nmcli con modify {uuid} connection.interface-name {iface}")
+        lines.append(f"nmcli con modify {uuid} ipv4.addresses {ip} ipv4.method manual")
+        lines.append(f"nmcli con modify {uuid} ipv4.never-default yes")
+
+        # IPv6 wyłączony jeśli wskazano
+        if iface in disable_ipv6_ifaces:
+            lines.append(f"nmcli con modify {uuid} ipv6.method ignore")
+
+        # Parsowanie adresu IP bez maski
+        ip_only = ip.split("/")[0]
+
+        # Obsługa tras i reguł tylko jeśli podano bramę
+        if gateway:
+            if iface == main_iface:
+                # tylko tu ustawiamy bramę domyślną
+                lines.append(f"nmcli con modify {uuid} ipv4.gateway {gateway}")
+            else:
+                # trasa i reguła do osobnej tablicy
+                lines.append(f"nmcli con modify {uuid} +ipv4.routes \"0.0.0.0/0 {gateway} table={table}\"")
+                lines.append(f"nmcli con modify {uuid} ipv4.routing-rules \"priority {priority} from {ip_only}/32 table {table}\"")
+                rt_tables.add(f"{table} rt{table}")
+
+        lines.append("")  # pusta linia dla czytelności
+
+    # Restart połączeń
+    lines.append("# Restart połączeń")
+    for c in configs:
+        lines.append(f"nmcli con down {c['uuid']} || true")
+        lines.append(f"nmcli con up {c['uuid']}")
+
+    # Dodaj wpisy do rt_tables tylko dla użytych tablic
+    rt_path = detect_rt_tables_path()
+    lines.append(f"\n# Wpisy do {rt_path}")
+    if "rt_tables.d" in rt_path:
+        lines.append("mkdir -p /etc/iproute2/rt_tables.d")
+    for rt in sorted(rt_tables):
+        lines.append(f"echo \"{rt}\" | sudo tee -a {rt_path} > /dev/null")
+
+    return "\n".join(lines)
+
+
+def main():
+    connections = list_connections()
+
+    print("\n[DEBUG] Wykryto połączenia:")
+    for c in connections:
+        print(f"- {c['name']} ({c['uuid']}) → {c['device']}")
+
+    if len(connections) == 0:
+        print("Brak połączeń ethernet.")
+        return
+
+    devices = [c["device"] for c in connections]
+    disable_ipv6_ifaces = ask_disable_ipv6(devices)
+    main_iface = ask_main_gateway_iface(devices)
+    configs = [prompt_config(c) for c in connections]
+    result = generate_commands(configs, disable_ipv6_ifaces, main_iface)
+
+    print("\n=== Wygenerowane polecenia ===\n")
+    print(result)
+
+    with open("nmcli_setup.sh", "w") as f:
+        f.write(result)
+    print("\nZapisano do pliku: nmcli_setup.sh")
+
+if __name__ == "__main__":
+    main()