Tag: network automation

Create a script and save it as config.py
Create a text file with your IOS script inside – This example is named c3750_lab_design

Save the file in the same folder path you save the script.

Example of Cisco IOS Script:

vtp mode transparent
spanning-tree mode rapid-pvst
udld enable
errdisable recovery cause all
port-channel load-balance src-dst-ip
ip name-server 10.0.10.3
no ip http server
no ip http secure-server

snmp-server community python1 RO
snmp-server community python2 RW

ntp server 0.us.pool.ntp.org

clock timezone CST -6
clock summer-time CST recurring
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime

vlan 10
name Data
vlan 11
name Voice
vlan 12
name Test

interface vlan 1
description In-band Management

ip default-gateway 10.0.10.1
ip dhcp snooping vlan 100,101

no ip dhcp snooping information option
ip dhcp snooping
ip arp inspection vlan 10
spanning-tree portfast bpduguard default

interface range Fa 1/0/1 - 20
switchport
switchport access vlan 10
switchport voice vlan 11
switchport host
switchport port-security maximum 5
switchport port-security
switchport port-security aging time 5
switchport port-security aging type inactivity
switchport port-security violation restrict
ip arp inspection limit rate 100
ip dhcp snooping limit rate 100
ip verify source

interface range Fa 1/0/21 - 48
switch tr en do
switchport mode trunk
end
wr


Related Posts:

• https://rfc-1925.com/setting-up-ssh-on-a-cisco-switch/
• https://rfc-1925.com/how-to-install-netmiko-paramiko-in-windows-10-using-pip/
• https://rfc-1925.com/netmiko-ssh-script-to-cisco-3750-switch/

Copy pasta script and save as config.py:

from netmiko import ConnectHandler

c3750_s1 = {
'device_type': 'cisco_ios',
'ip': '10.0.10.24',
'username': 'lab',
'password': 'lab'
}

c3750_s2 = {
'device_type': 'cisco_ios',
'ip': '10.0.10.25',
'username': 'lab',
'password': 'lab'
}

c3750_s3 = {
'device_type': 'cisco_ios',
'ip': '10.0.10.26',
'username': 'lab',
'password': 'lab'
}

all_devices = [c3750_s1, c3750_s2, c3750_s3]

for devices in all_devices:
net_connect = ConnectHandler(**devices)
for n in range (2,21):
print ("Creating VLAN " + str(n))
config_commands = ['vlan ' + str(n), 'name Python_VLAN' + str(n)]
output = net_connect.send_config_set(config_commands)
print (output)

Execute the script and then check the devices for configuration changes.

Open your favorite editor and copy pasta:

Save the file as config.py and execute the script:
python config.py

If we check on our switch we can see that our script has created new vlans.