aaa local-user python password cipher 123asd local-user python privilege level 3 local-user python service-type ssh stelnet server enable ssh authentication-type default password user-interface vty 0 4 authentication-mode aaa protocol inbound ssh screen-length 0
192.168.8.0/24 ⽹段我⾃⼰的电脑（Win10 已安装 python 3.9.3）设置⼀块虚拟⽹卡地址为 192.168.8.105/24，桥接，与实验拓扑拉通组⽹。
本次实验只需要⽤到 PC ，透明交换机SW1（启动即可，⽆需配置）、LSW1（Python 第三⽅库 paramiko 要操控的设备。），其它 LSW未启动，后续实验再使⽤。
⽤Python Paramiko 模块实现 SSH 登陆单个交换机LSW1（192.168.8.201）,为其 LoopBack0 端⼝配置IP地址 1.1.1.1 /32。配置完成后对设备进⾏配置保存，并退出。
检查⽹络连通性（PC ping 测 192.168.201），打开 cmd，执⾏ ping 192.168.8.201
检查 win10 的 arp 表项，打开 cmd ，执⾏ arp -a ，找到 接⼝: 192.168.8.201 — 0x10 查看表项。
import paramiko
import time
ip = "192.168.8.201"
username = "python"
password = "123asd"
ssh_client = paramiko.SSHClient()
ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh_client.connect(hostname=ip, username=username, password=password, look_for_keys=False)
print("Successfully connected to ", ip)
command = ssh_client.invoke_shell()
command.send("sysn")
command.send("interface LoopBack 0n")
command.send("ip address 1.1.1.1 255.255.255.255n")
command.send("returnn")
command.send("saven")
command.send("yn")
time.sleep(3)
command.send("display thisn")
time.sleep(1)
output = command.recv(65535)
print(output.decode("ascii"))
ssh_client.close()
输出
C:Users82127.condaenvspythonProjectpython.exe E:logpythonpythonProjectDemo01.py
Successfully connected to 192.168.8.201
Info: The max number of VTY users is 5, and the number
of current VTY users on line is 1.
The current login time is 2022-05-30 22:54:56.
sys
Enter system view, return user view with Ctrl+Z.
[LSW1]interface LoopBack 0
[LSW1-LoopBack0]ip address 1.1.1.1 255.255.255.255
[LSW1-LoopBack0]return
save
The current configuration will be written to the device.
Are you sure to continue?[Y/N]y
Info: Please input the file name ( *.cfg, *.zip ) [vrpcfg.zip]:display this
Error: Invalid file name or Invalid extension ( *.cfg, *.zip ).
