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fstorer's avatar
fstorer
Brass Contributor
Feb 09, 2020

Retrieving information from multiple Access Points via PowerShell

Hello everyone!   I am doing a WiFi site survey and I would need to retrieve some information from all the Access Points installed in our school (around 136). I wonder if it would be feasible to wr...
Windows PowerShell
Erick A. Moreno R.'s avatar
Erick A. Moreno R.
Iron Contributor
Feb 25, 2020

fstorer don't worry I understand, I'm glad to help. 

About the error, have you confirmed that the network is ok? I mean the session was established correctly but there could be a timeout so please increase the timeout option to see how it behaves.  Could you try with a single command like help just to see if it is taking the command string correctly?

 

I don't think the format is a problem is should display something as I said in my comment in the script we may need to work on formatting that table. 

 

Regards 

fstorer's avatar
fstorer
Brass Contributor
Feb 27, 2020

Hi Erick A. Moreno R.

 

I was able to solve my problem thanks to this article: https://github.com/darkoperator/Posh-SSH/issues/146

Using New-SSHShellStream instead of Invoke-SSHCommand  returned all the results I wanted.

I need to tweak the final script, but these are the commands I used:

 
$Credentials = Get-Credential
$session = New-SSHSession -ComputerName x.x.x.x -Credential $Credentials -AcceptKey
$SSHStream = New-SSHShellStream -SessionId 0
$SSHStream.WriteLine("show interface")
$SSHStream.read()
 
I hope this may be of some help!
Thanks again for your help, I really appreciate that! And thanks to the creator of "Posh-SSH" module!
  • Erick A. Moreno R.'s avatar
    Erick A. Moreno R.
    Iron Contributor
    Feb 27, 2020

    fstorer Awesome, thanks for the update. So we need to push commands that way whenever the command has params, good to know. 

     

    Regards

    Erick

    • fstorer's avatar
      fstorer
      Brass Contributor
      Mar 02, 2020

      Dear Erick A. Moreno R. 

       

      Unfortunately, I am still having issues with the output...

      I want to send the output of the "$SSHStream.read()" to a txt file, but when I run the command:

       

      Out-File -FilePath ".\APInterfaces.txt" -InputObject $SSHStream.read()
       
      I got a blank txt file. 
      Any suggestions?
      • Erick A. Moreno R.'s avatar
        Erick A. Moreno R.
        Iron Contributor
        Mar 02, 2020

        fstorer Hello, you got that as once you run the read from the stream you reset the variable to no data. 

        I've tested this saving the read output to a new Variable and it is working for me, please test it and let me know the outcome.

         

        $session = New-SSHSession -ComputerName $AP.IP -Credential $Credentials -AcceptKey
$SSHStream = New-SSHShellStream -SessionId $session.SessionId
$SSHStream.WriteLine("show interface")

$OutputVar =  $null
$OutputVar = $($SSHStream.read())
$OutputVar 

$OutputVar | Out-File -FilePath "$WorkingDir\APInterfaces.txt" -Encoding utf8

         

        Regards

        Erick Moreno

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