Script to download and compare configs

[Damon]

Hi all,

Is there a script to download configs of multiple routers/switch and compare for config differences? I am auditing hundreds of devices that are missing some commands and comparing them against known good configuration devices and documenting which commands are missing. There has to be an easier way to do this than comparing each and everyone with different similar devices.

Thanks
Damon

[rtb]

Hi Damon,

We don't have an example that does what you are asking, but it seems like it would be possible to modify the example at the following location to meet your needs:

https://forums.vandyke.com/showthrea...7294#post37294

Are you able to create your own solution using the example as a beginning point?

[Damon]

Originally Posted by rtb

Hi Damon,

We don't have an example that does what you are asking, but it seems like it would be possible to modify the example at the following location to meet your needs:

https://forums.vandyke.com/showthrea...7294#post37294

Are you able to create your own solution using the example as a beginning point?

I am working on it. I will share once its presentable

[thera34]

Hi Damon,

I also had a similar issue with hundreds of Cisco switches/routers to backup their config.
So I made this script which uses a single "devices.txt" file where I store IPaddress/hostname/username/password/enable password separated by ";" on each line. It then reads it , connects to each one, saves configs in form of "hostname".txt files

-devices.txt file is located on same folder as the script
-I also connect first to a Linux server before connecting to devices.

Hope it helps out and let me know if you have some other improvement ideas

#$language = "VBScript"
#$interface = "1.0"

' Test Script to log in via SSH/telnet and enters in privileged mode
' IF enable password is not set or you connect with TACACS/Radius directly in privileged mode, 
' then comment the lines after Loop until the next comment section
' This version uses only one "devices.txt" file to store IP Address;hostname;username;password;enable password

Dim g_objTab
Set g_objTab = crt.GetScriptTab

Sub Main
	CRT.Screen.synchronous = True
	If crt.Session.Logging Then 								' Turn off session logging before setting up our script's
	   crt.Session.Log False									' logging... if needed
	End If
		Dim fso													' Declaring filesystemobject
		Dim fil													' Declaring file containing devices
		Dim vWaitFors											' Array to determine if RSA key is known, also to determine if SSH or Telnet is enabled
		vWaitFors = Array("(yes/no)?",_
							"port 22: Connection refused",_
							"assword:")
		Const DEVICE_FILE_PATH = ".\devices.txt"				' Path to devices list (can be modified, now it points to same folder where script is located)
		Set fso = CreateObject("Scripting.FileSystemObject")
		Set fil = fso.OpenTextFile(DEVICE_FILE_PATH)			' Open devices file
	While Not fil.AtEndOfStream									' Read devices.txt. Until not EOF do :
		line = fil.ReadLine										' Read line by line
		Device = Split(line, ";")(0)							' Device's IP address
		hostname = Split(line,";")(1)							' hostname - for easy human read
		username = Split(line,";")(2)							' username to connect to device
		pass = Split(line,";")(3)								' password for username
		pass2 = Split(line,";")(4)								' password to enter privileged mode if needed
		crt.Screen.Send "ssh " + username + "@" + Device & chr(13)	' First try to connect via SSH to device
		Do
		Dim nResult	
		nResult = crt.Screen.WaitForStrings(vWaitFors)
		Select Case nResult										' Now determine if RSA key has to be added or not in SSH case or try via Telnet
			Case 1												' RSA key for /.ssh/known_hosts must be added
		crt.Screen.Send "yes" & chr(13)							' so send and "yes"
		crt.Screen.WaitForString "assword:"						' then wait for password prompt
		crt.Screen.Send pass & chr(13)							' and send pass
			Case 2												' SSH not enabled on device, then go for telnet
		crt.Screen.Send "telnet " + Device & chr(13)
		crt.Screen.WaitForString "sername:"
		crt.Screen.Send username & chr(13)
		crt.Screen.WaitForString "assword:"
		crt.Screen.Send pass & chr(13)
			Case 3												' RSA key already learned
		crt.Screen.Send pass & chr(13)							' just send pass from credentials file
		End Select
		Exit Do
		Loop
		crt.Screen.WaitForString ">"							' Waits for prompt
		crt.Screen.Send "enable" & chr(13)						' Enable
		crt.Screen.WaitForString "assword:"
		crt.Screen.Send pass2 & chr(13)							' sends enable pass
		crt.Screen.WaitForString "#"							' waits for privileged mode prompt
		' From now on, just put whatever commands you need for your device
		' use crt.Screen.Send "command" & chr(13) --- to send what you want, chr(13) stands for ENTER key
		' use after each command an crt.Screen.WaitForString "#" -- to wait for prompt after command's output
		' Or even better just use SendExpect "command", "prompt" --- see below function
		SendExpect "terminal length 0", hostname + "#"
		crt.Session.logFileName = ".\" + hostname + ".txt"
		crt.Session.Log True
		SendExpect "show running-config", hostname + "#"
		crt.Session.Log False
		' Commands sent/received output ends here. Next is disconnecting from device	
		SendExpect "exit", "]$ "								' Closes connection & Waits for Terminal Server prompt and is ready for next device
	Wend	
	fil.Close													' Close devices file
End Sub															' THE END OF THE UNIVERSE AS YOU KNEW IT:)
Function SendExpect(szSend, szExpect)							' Made this to replace the Screen.Send/Screen.WaitForString pairs
	' Returns true if the text in 'szSend' was successfully sent and
	' the text in 'szExpect' was successfully found as a result.
    ' If we're not connected, we can't possibly return true, or even send/recv text
    
	if g_objTab.Session.Connected <> True then exit function
        
    g_objTab.Screen.Send szSend & vbcr
    g_objTab.Screen.WaitForString szExpect

    SendExpect = True
End Function

[Mrcool007]

Hello, i have a project in which i have to make a script to download configs of multiple routers/switch and compare for config differences , so actually i saw your script and i don't know how to make it work, can you help me please !