(VB.NET UWP/WinRT) SSH Commands to Cisco Switch

Demonstrates how to establish an SSH session with a Cisco switch (or something similar) and send commands in a device console session.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

Dim ssh As New Chilkat.Ssh

Dim success As Boolean = Await ssh.ConnectAsync("172.16.16.100",22)
If (success <> True) Then
    Debug.WriteLine(ssh.LastErrorText)
    Exit Sub
End If


' Authenticate using login/password:
success = Await ssh.AuthenticatePwAsync("myLogin","myPassword")
If (success <> True) Then
    Debug.WriteLine(ssh.LastErrorText)
    Exit Sub
End If


' Start a shell session.
Dim channelNum As Integer = Await ssh.QuickShellAsync()
If (channelNum < 0) Then
    Debug.WriteLine(ssh.LastErrorText)
    Exit Sub
End If



' If the CISCO switch returns a prompt with "#", then read until we get the prompt.
' (It's not actually required that we do this, but it helps to know that all is OK at this point..)
success = Await ssh.ChannelReceiveUntilMatchAsync(channelNum,"#","utf-8",True)
If (success <> True) Then
    Debug.WriteLine(ssh.LastErrorText)
    Exit Sub
End If


' Show what we received so far:
Debug.WriteLine(ssh.GetReceivedText(channelNum,"utf-8"))

' Send a "show clock" command.
success = Await ssh.ChannelSendStringAsync(channelNum,"show clock" & vbLf,"utf-8")

' Read the output to the next interactive prompt.
success = Await ssh.ChannelReceiveUntilMatchAsync(channelNum,"#","utf-8",True)
If (success <> True) Then
    Debug.WriteLine(ssh.LastErrorText)
    Exit Sub
End If

Debug.WriteLine(ssh.GetReceivedText(channelNum,"utf-8"))

' Send another command and get the output, and so on...
success = Await ssh.ChannelSendStringAsync(channelNum,"some other command" & vbLf,"utf-8")
success = Await ssh.ChannelReceiveUntilMatchAsync(channelNum,"#","utf-8",True)
If (success <> True) Then
    Debug.WriteLine(ssh.LastErrorText)
    Exit Sub
End If

Debug.WriteLine(ssh.GetReceivedText(channelNum,"utf-8"))


ssh.Disconnect()