Python learning for Network Engineers | Part 10 | using for loop range for devices
In this video I will using for loop to connect to multiple devices
Here I will be using two devices 10 and 11
import paramiko
import time
from getpass import getpass
username = ‘admin’
password = ‘admin’
for RTR in range(10,12):
ip = « 10.10.10. » + str(RTR)
print (‘n##### Connecting to the device ‘ + ip +’ #####’)
SESSION = paramiko.SSHClient()
SESSION.set_missing_host_key_policy(paramiko.AutoAddPolicy())
SESSION.connect(ip,port=22,
username=username,
password=password,
look_for_keys=False,
allow_agent=False)
DEVICE_ACCESS = SESSION.invoke_shell()
DEVICE_ACCESS.send(b’config tn’)
for N in range (2,5):
DEVICE_ACCESS.send(‘int lo ‘ +str(N) + ‘n’)
DEVICE_ACCESS.send(‘ip address 1.1.1.’ +str(N) + ‘ 255.255.255.255n’)
time.sleep(5)
DEVICE_ACCESS.send(b’do term length 0n’)
DEVICE_ACCESS.send(b’do show ip int briefn’)
time.sleep(3)
output = DEVICE_ACCESS.recv(65000)
print (output.decode(‘ascii’))
SESSION.close
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network engineer
