def worker(device):
try :
connection = netmiko.connectionHandler(**device)
except(NetmikoTimeoutException):
print('Timeout to device: '+ ip )
continue
except(AuthenticationException):
print('Authentication Failure to device : '+ ip)
continue
except(SSHException):
print('SSH connection issue to device : '+ ip )
continue
except(EOFError):
print('End of file while attempting device : '+ ip)
continue
except Exception as unknown_error:
print('Unknown Error: '+ unknown_error +' to device: ' + ip)
continue
print(connection)
#Available versions (Switch or Router)
list_versions = ['vios_l2-ADVENTERPRISEK9-M','VIOS-ADVENTERPRISEK9-M']
# Check version from the device and send proper commands
for version in list_versions:
print('Checking software version for '+version)
#Check device software version
output_version = connection.send_command('show version')
#if found run appropriate commands
if output_version.find(version)>0 :
print('Software version: '+ output_version)
if version=='vios_l2-ADVENTERPRISEK9-M':
print('Running commands for version '+ version)
print(connection.send_command(commands_to_send_switch))
elif version=='VIOS-ADVENTERPRISEK9-M' :
print(connection.send_command(commands_to_send_router))
break
else :
print('Not running commands for version: ' + version)
connection.disconnect()
"""
This script uses netmiko library to
connect to Cisco switch and sends
'Show ip int breif' command
Device details are stored in iosv_l2_s1 dictionary
"""
import netmiko
iosv_l2_s1 = {
'device_type' = 'cisco_ios',
'ip' = '192.168.122.71',
'usernmae' = 'admin',
'password' = 'cisco'
}
#create connection to a network device
connection = netmiko.connectionHandler(**iosv_l2_s1)
print(connection)
#print show ip interfaces
print(connection.send_command('Show ip int breif'))
#Disconnect a connection
connection.disconnect()
#will give socket error since, connection is already closed
print(connection.send_command('Show ip int breif'))
Instead of hard coding username and password, this script prompts the user
to enter username and password
devices_ip.txt consists device ip addresses to send commands to.
"""
form getpass import getpass
import netmiko
username = input('Enter SSH username: '******'commands_file.txt', 'r') as f:
commands_to_send = f.read().splitlines()
with open('devices_ip.txt', 'r') as f:
device_ip = f.read().splitlines()
for ip in device_ip:
print('Connecting to device: '+ ip)
device = {
'device_type' = 'cisco_ios',
'ip' = ip,
'usernmae' = username,
'password' = password
}
connection = netmiko.connectionHandler(**device)
print(connection)
print(connection.send_command(commands_to_send))
connection.disconnect()