Siemens RuggedCom ROS

[Ch1ll3r]

Hi All,

I'm tasked to do configuration changes on about 1000 Siemens RuggedCom switches with ROS Version between 5.2 and 5.10.
The switches don't have classic CLI, when you ssh into them, they present a terminal menu (TUI). In that TUI, you can enter CRTL+S to jump into a real shell that accepts classic commands to configure the switch. Has anybody excperience with Siemens Ruggedcom and Netmiko? Or has anybody experience on how to handle a TUI?

Here's a screenshot of the TUI

after ssh into the switch, you first have to press "enter"

Next you have to press "CTRL+S"

finally we arrived in the shell:

[ktbyers]

@Ch1ll3r I would probably use the Netmiko generic device type and then experiment with using write_channel() and read_channel() to send the and to navigate the menu (until you get to the > prompt).

[Ch1ll3r]

So far so good, I'm able to read the main menue. But I need to send "Ctrl+S" to enter the shell. I tried net_connect.write_channel("\x13") as this is ASCII for Ctrl+S but didn't have any luck. Any Idea how to send Ctrl+S?

[ktbyers]

When you do it manually, do you have to hit also or just Ctrl+S. Also when you do it manually I assume this is Cntl-Shift-S all at the same time?

[Ch1ll3r]

So after inserting delays between traversing from menue to shell and entering commands, I got it consistently working. Thank you for your help :)

Below the code if somebody needs a kickstart.

---

#!/usr/bin/env python3
from netmiko import ConnectHandler
import time

device = {
    'device_type': 'generic',
    'ip': '192.168.1.1',
    'username': 'admin',
    'password': 'admin',
    'global_delay_factor': 1,
}

def wait_for_prompt(connection, expected, timeout=20):
    #Read output until a specific string appears
    buffer = ""
    start = time.time()
    while time.time() - start < timeout:
        out = connection.read_channel()
        if out:
            buffer += out
            if expected in buffer:
                return True
        time.sleep(0.2)
    raise TimeoutError("Timed out waiting for: " + expected)

def main():
    net_connect = ConnectHandler(**device)

    #Wait for: Press 'Enter' to continue...
    wait_for_prompt(net_connect, "Press 'Enter' to continue...")
    #press Enter
    net_connect.write_channel("\n")

    #Wait for: Main Menu
    wait_for_prompt(net_connect, "Main Menu")

    #Send Ctrl+S
    net_connect.write_channel("\x13")  # Ctrl+S is ASCII 19
    time.sleep(0.3)
    net_connect.write_channel("\n")  # Send Enter
    time.sleep(0.3)


    #Send command
    wait_for_prompt(net_connect, ">")
    net_connect.write_channel("version")
    time.sleep(0.3)
    net_connect.write_channel("\n")  # Send Enter
    time.sleep(0.3)

    # Read the output
    output = net_connect.read_channel()
    print("=== CONSOLE OUTPUT ===")
    print(output)

    net_connect.disconnect()


if __name__ == "__main__":
    main()