16471 Grundlæggende programmering

1. Link til Google Hangout
2. Vores facebookgruppe til at dele info via denne link - gruppen hedder Grundlæggende programmering - Python
3. Kurset følger i første del video læringsmaterialet via denne link til Oreilly
4. Materiale til øvelser i videomateriale via denne link til Github

Primtal opgave svar

• Prime.zip

Python and networking

Materials

• Python Network Programming for Network Engineers (Python 3) (Oreilly Video based)
  • GNS3 see - Chapter 1 - part 2 to 6
    • Link to: Cisco 7200 IOS
  • Chapter 3 - Telnet
  • Chapter 4 - SSH
  • Chapter 5 - NAPALM - Mutivendor automation API

Telnet

To use this module, you need to be able to telnet to one or more Cisco devices.

Example of basic setup

enable password cisco
!
username cisco password 0 cisco
!
aaa new-model
aaa authentication login default local enable
!
line vty 0 15
 password cisco

Python 3 telnet example

import getpass
import sys
import telnetlib
host = "192.168.239.129"
user = input("Username: ")
password = input("Password: ") 

tn = telnetlib.Telnet(host)
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"enable\n")
tn.write(b"cisco\n")
tn.write(b"conf t\n")
tn.write(b"int loop 0\n")
tn.write(b"ip address 1.1.1.1 255.255.255.255\n")
tn.write(b"int loop 1\n")
tn.write(b"ip address 1.1.1.2 255.255.255.255\n")
tn.write(b"end\n")
tn.write(b"exit\n")
print(tn.read_all())

SSH

To use this module, you need to be able to ssh to one or more Cisco devices.

• Using Python and SSH
  • Fabric Homepage
  • Fabric Documentation