我收到错误消息，代码停止转到下一个网络设备进行登录。网络编程 Python

Question

我在 "devices_list" 中有 cisoc_ios 路由器、fortinet 防火墙和 HP 交换机，但是当我运行这段代码和它命中 fortinet 防火墙时，它不会按原样给出错误不是 cisco_ios 并尝试登录。登录后它给出错误，因为它无法进入配置模式（显然）。所以我需要改进我的下面的代码，以便当 fortinet 或 hp 设备出现时代码抛出错误而不是尝试登录并且它应该继续直到所有设备都被尝试过。

    from getpass import getpass
    from netmiko import ConnectHandler
    from netmiko.ssh_exception import NetMikoTimeoutException
    from netmiko.ssh_exception import AuthenticationException
    from paramiko.ssh_exception import SSHException

    username = input("Enter username:  ")
    password = getpass()
    with open('commands_file.txt') as f:
        commands_list = f.read().splitlines()
    with open('devices_list.txt') as f:
        devices_list = f.read().splitlines()
    for devices in devices_list:
        print("Connecting to device:  " + devices)
        host_name_of_device = devices
        ios_device = {
            'device_type' : 'cisco_ios' ,
            'host' : host_name_of_device ,
            'username' : username ,
            'password' : password ,
        }
        try:
            net_connect = ConnectHandler(**ios_device)
        except (AuthenticationException):
            print("Authetication failure: " + host_name_of_device)
            continue
        except (NetMikoTimeoutException):
            print("Time out from device: " + host_name_of_device)
            continue
        except (EOFError):
            print("End of File reached: " + host_name_of_device)
            continue
        except (SSHException):
            print("Not able to SSH: Try with Telnet:  " + host_name_of_device)
            continue
        except Exception as unknown_error:
            print("other: " + unknown_error)
            continue
        output = net_connect.send_config_set(commands_list)
        print(output)

Answer 1

netmiko 可以autodetect 设备的类型。您应该在运行命令之前使用它。

from netmiko.ssh_autodetect import SSHDetect
...

    for devices in devices_list:
        print("Connecting to device:  " + devices)
        host_name_of_device = devices
        remote_device = {
            'device_type' : 'autodetect' , # Autodetect device type
            'host' : host_name_of_device ,
            'username' : username ,
            'password' : password ,
        }
        guesser = SSHDetect(**remote_device)
        best_match = guesser.autodetect()
        if best_match != 'cisco_ios':
            print("Device {} is of type {}. Ignoring "
                  "device".format(host_name_of_device, best_match))
            continue
        # Device type is cisco_ios
        remote_device['device_type'] = best_match # Detected device type
        try:
            net_connect = ConnectHandler(**remote_device)

我收到错误消息，代码停止转到下一个网络设备进行登录。网络编程 Python

I am getting error and code stops going to next network device to login.. Networking-Programming Python

python-3.x

network-programming

netmiko