I got an error when running automation script for network device like this:
~python-Automation/ $ python3 multivendor.py
Traceback (most recent call last):
File "multivendor.py", line 23, in <module>
paramiko.ssh_exception.AuthenticationException: Authentication failed.
so when you have entered the correct password and username but still get an error like that, you need to add this parameter in your automation script
look_for_keys=False
finally, the parameter will disable search for discoverable private key files in ~/.ssh/.
so you will see my script like this
import paramiko
import time
devices = [
{
'ip_address' : '172.16.1.1',
'vendor' : 'mikrotik',
'username' : 'router1',
'password' : 'tes'
},
{
'ip_address' : '172.16.1.2',
'vendor' : 'cisco',
'username' : 'cisco',
'password' : 'cisco'
}
]
ssh_client = paramiko.SSHClient()
ssh_client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
for device in devices:
ssh_client.connect(hostname=device['ip_address'],
username=device['username'],
password=device['password'],
look_for_keys=False)
print("success login to {}".format(device['ip_address']))
if device['vendor'] == 'cisco':
conn = ssh_client.invoke_shell()
# conn.send("enable\n")
conn.send("conf t\n")
conn.send("int lo99\n")
conn.send("ip add 10.1.99.1 255.255.255.255\n")
time.sleep(2)
# output = conn.recv(65535)
# print(output.decode())
else:
ssh_client.exec_command('interface bridge add name=loopback3\n')
ssh_client.exec_command('ip add add address=10.2.99.2/32 interface=loopback3')
ssh_client.close
Good luck 😄
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