banner motd change failing on Juniper device

Good afternoon, I am new to programming and am very excited to learn about Netmiko. I am trying to change the Banner Motd on more than 100 Juniper devices (RT and SWITCH) but it is giving me the following error.

File “02_Banner.py”, line 38, in <module> output = net_connect.send_config_set(banner, exit_config_mode=False)
File “/usr/local/lib/python3.6/site-packages/netmiko/base_connection.py”, line 1782, in send_config_set new_output = self.read_until_pattern(pattern=re.escape(cmd.strip())) File “/usr/local/lib/python3.6/site-packages/netmiko/base_connection.py”, line 641, in read_until_pattern return self._read_channel_expect(*args, **kwargs) File “/usr/local/lib/python3.6/site-packages/netmiko/base_connection.py”, line 575, in _read_channel_expect “Timed-out reading channel, data not available.” netmiko.ssh_exception.NetmikoTimeoutException: Timed-out reading channel, data not available.

The script is quite simple which I share. (change banner text)

from netmiko import ConnectHandler
from netmiko.ssh_exception import NetMikoTimeoutException
from netmiko.ssh_exception import NetMikoAuthenticationException
from paramiko.ssh_exception import SSHException

IP_LIST_JUNIPER = open('eqjuniper')
for IP in IP_LIST_JUNIPER:
    dis = {
	'device_type': 'juniper',
    	'ip':   IP,
    	'username': 'juniper',
    	'password': 'juniper', 	
    }
    print ('\n### CONNECTING TO THE DEVICE' +'_'+ IP.strip() + '###\n')
    try:
        net_connect = ConnectHandler(**dis)
    except NetMikoTimeoutException:
        print ('\n###DISPOSITIVO INALCANZABLE .###\n')
        continue

    except NetMikoAuthenticationException:
        print ('\n### AUTHENTICATION FAILURE.###\n')
        continue
    except SSHException:
        print ('\n### Make sure SSH is enabled on the device.###\n')
        continue

    banner = ["set system login message '################################################################################\n#This system should be used business or for purposes       			#\n# It is mandatory to comply with all the           				#\n#requirements listed in the applicable security policy and only process         #\n#or store the data classes approved for this asset type. Use is subject         #\n.	 #################################################################################'"]

    output = net_connect.send_config_set(banner, exit_config_mode=False)   
    print(output)

I will be very grateful for your help

[veprimk]

Hi @ibolt1,

Try using host as key instrad of ip for the device definition dictionary:

dis = {
             'device_type': 'juniper',
             'host': IP,
             'username': 'juniper',
             'password': 'password',
         }

Kind regards, Veprim

[ibolt1]

Hi @ktbyers I have the latest version of netmiko installed v3.2.0

CODIGO: from netmiko import ConnectHandler from netmiko.ssh_exception import NetMikoTimeoutException from netmiko.ssh_exception import NetMikoAuthenticationException from paramiko.ssh_exception import SSHException

IP_LIST_JUNIPER = open(‘juniper’) for IP in IP_LIST_JUNIPER: dis = { ‘device_type’: ‘juniper’, ‘ip’: IP, ‘username’: ‘test’, ‘password’: ‘test1’, }

print ('\n### CONNECTING TO THE DEVICE' +'_'+ IP.strip() + '###\n')
try:
    net_connect = ConnectHandler(**dis)
except NetMikoTimeoutException:
    print ('\n### UNREACHABLE DEVICE.###\n')
    continue

except NetMikoAuthenticationException:
    print ('\n### AUTHENTICATION FAILURE.###\n')
    continue
except SSHException:
    print ('\n### Make sure SSH is enabled on the device.###\n')
    continue

print ('\n##### INITIATING BANNER CONFIGURATION #####\n')

banner = ['set system login message "######################################################################################################\n#This system should be used for conducting business or for purposes authorized by management.#\n#It is mandatory to comply with all the requirements listed in the applicable security policy and     #\n#only process or store the data classes approved for this asset type. Use is subject                  #\n#to audit at any time by management.				                              #\n#######################################################################################################"']

output = net_connect.send_config_set(banner, cmd_verify=False, delay_factor=2)   
print(output)

Juniper team result: test@test1# show | compare [edit system login]

• message " ";

• message "###################################################################################################### ";

{master:0}[edit]

when it is presented with the argument \ n the message is cut and it does not continue with what else thank you