telnetExampleLoop.py

#! /bin/bash/python3
# Telnetexample
import getpass
import telnetlib

for Routers in range(2):
    HOST = input("Enter the IP Address of Device: ")
    print("I am logging int to Router - " + (HOST))
    tn = telnetlib.Telnet(HOST)
    user = input("Enter your cisco username: ")
    password = getpass.getpass()
    tn.read_until(b"Username: ")
    tn.write(user.encode('ascii') + b"\n")
    if password:
        tn.read_until(b"Password: ")
        tn.write(password.encode('ascii') + b"\n")

    tn.write(b"terminal len 0\n")
    tn.write(b"configure terminal\n")
    # tn.write(b"hostname RTR1\n")
    tn.write(b"router eigrp 100\n")
    tn.write(b"no auto-summary\n")
    tn.write(b"network 0.0.0.0\n")
    tn.write(b"exit\n")
    tn.write(b"exit\n")
    tn.write(b"show ip protocol\n")
    tn.write(b"show version\n")
    tn.write(b"show ip interface brief\n")
    tn.write(b"write memory\n")
    tn.write(b"exit\n")

    print(tn.read_all().decode('ascii'))