Detailed Implementation of autotelnet

For Telnet, we can use multiple methods. Here we will introduce the implementation of autotelnet. For more information, see the text.

I. Shell implementation, file name: autotelnet. sh, the Code is as follows:

 
 

  
  
(sleep 1;echo "root";sleep 1;echo "123456";sleep 1;echo "en";sleep 1;echo "1qazse4";sleep 1;echo "conf t";sleep 1;echo "int fa0/1";sleep 1;echo "switchport mode multi";sleep 1;echo "end";sleep 1;echo "exit") | telnet 10.32.17.10  
 
 

Ii. Verify CT. The file name is autotelnet. exp. The Code is as follows:

 
 

  
  
#!/usr/bin/expect   
  
  
set timeout 100   
  
  
set TERM xterm   
  
  
set SERVER "10.32.17.10"   
  
  
set USER "root"   
  
  
set PASSWD "123456"   
  
  
spawn telnet   
  
  
expect "telnet> "   
  
  
send "open $SERVERr"   
  
  
expect "Username:"   
  
  
send "$USERr"   
  
  
expect "Password:"   
  
  
send "$PASSWDr"   
  
  
expect "longjiang-zero>"   
  
  
send "enr"   
  
  
expect "Password:"   
  
  
send "$PASSWDr"   
  
  
expect "longjiang-zero#"   
  
  
send "conf tr"   
  
  
expect "longjiang-zero(config)#"   
  
  
send "int fa0/1r"   
  
  
expect "longjiang-zero(config-if)#"   
  
  
send "switchport mode multir"   
  
  
expect "longjiang-zero(config-if)#"   
  
  
send "endr"   
  
  
expect "longjiang-zero#"   
  
  
send "exitr"   
  
  
interact  
 
 

Iii. Python implementation. File Name: autotelnet. py. The Code is as follows:

 
 

  
  
#!/usr/bin/python   
  
  
import telnetlib   
  
  
host = ''10.32.17.10''   
  
  
user = ''root''   
  
  
password = ''123456''   
  
  
commands = [''en'',password,''conf t'',''int fa0/1'',''switchport mode multi'',''end'']   
  
  
tn = telnetlib.Telnet(host)   
  
  
tn.read_until("Username:")   
  
  
tn.write(user + "n")   
  
  
tn.read_until("Password:")   
  
  
tn.write(password + "n")   
  
  
for command in commands:   
  
  
tn.write(command+''n'')   
  
  
tn.write("exitn")   
  
  
print tn.read_all()   
  
  
print ''Finish!''