HUAWEI VRP (R) software does not support diffie-hellman-group16-sha512

[yufengshizhe]

netmiko not support HUAWEI VRP (R) software, Version 5.170 (S5720 V200R019C10SPC500)

[ktbyers]

@yufengshizhe
There is a: huawei_vrpv8

Does that work?

https://github.com/ktbyers/netmiko/blob/develop/netmiko/ssh_dispatcher.py#L192

Otherwise, you would probably need to create a driver for the platform (if you want support for it). Process for creating a driver is here:

https://github.com/ktbyers/netmiko/blob/develop/VENDOR.md

[yufengshizhe]

Use VRP8 is still the same, NetmikoTimeoutException
I tried to modify the conn_timeout, auth_timeout, session_timeout parameters, but it still doesn’t work

[ktbyers]

What is the actual exception / issue that you run into?

[yufengshizhe]

user netmiko to login huawei switch timeout

[ktbyers]

I would need to see a simplified version of the code (i.e. a simple base case that illustrates the problem) and the full exception stack trace.

Regards, Kirk

[yufengshizhe]

import os
import netmiko
from netmiko import ConnectHandler,NetmikoTimeoutException,NetmikoAuthenticationException #引入netmiko连接模块、报错模块
import getpass
import time 
date = time.strftime('%Y%m%d', time.localtime()) #赋予date变量


swlist=open("ip.txt","r",encoding='utf8')
for ip in swlist.readlines(): 
    
    huawei = {
    'device_type':"huawei", #定义设备类型
    'ip':ip, 
    'port':'22',
    'username':'xxxxxx', 
    'password':'xxxxxxx',
    #'secret' : 'admin' #enable密码
    }
    try:
        huawei_connect = ConnectHandler(**huawei) #传入设备字典与设备建立SSH连接。
        print ("Sucessfully Login to",ip)
        print ("Building configuration...")
        cmd1=("dis ver")
        out1=huawei_connect.send_command(cmd1)
        print(out1)

        
        print(ip,'Was finished!\n',"-"*100)
    except NetmikoAuthenticationException : #认证失败报错记录
        e1 = open(f'{date}.txt','a')
        print(date,ip,'[Error 1] Authentication failed.\n',file = e1)
        e1.close
    except NetmikoTimeoutException : #登录超时报错记录
        e2 = open(f'{date}.txt','a')
        print(date,ip,'[Error 2] Connection timed out.\n',file = e2)
        e2.close
    except : #未知报错记录
        e3 = open(f'{date}.txt','a')
        print(date,ip,'[Error 3] Unknown error.\n',file = e3)
        e3.close
        huawei_connect.disconnect() #断开SSH连接
swlist.close()

[yufengshizhe]

[yufengshizhe]

I would need to see a simplified version of the code (i.e. a simple base case that illustrates the problem) and the full exception stack trace.

Regards, Kirk

hi，
i use is to remove diffie-hellman-group16-sha512 from the list of kex algos in paramiko.now,Problem has been solved
from paramiko import transport transport.Transport._preferred_kex = ( 'ecdh-sha2-nistp256', 'ecdh-sha2-nistp384', 'ecdh-sha2-nistp521', # 'diffie-hellman-group16-sha512', # disable 'diffie-hellman-group-exchange-sha256', 'diffie-hellman-group14-sha256', 'diffie-hellman-group-exchange-sha1', 'diffie-hellman-group14-sha1', 'diffie-hellman-group1-sha1',