(VB.NET) Inovis VAN FTP/SSL (EDI)

Demonstrates how to connect to the Inovis EDI VAN (FTP/SSL).

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

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

Dim ftp As New Chilkat.Ftp2

ftp.Hostname = "ftpssl.gateway.inovisworks.net"
ftp.Username = "myLogin"
ftp.Password = "myPassword"

' The Inovis EDI VAN requires Passive connections:
ftp.Passive = True

' Note: The Inovis documentation mentions an outbound
' high port range of 40000-49999.  In passive mode, the
' FTP server chooses the port number for the data
' connection.  The Inovis server will choose a port number
' in the range 40000-49999.  To establish the data connection,
' your firewall must allow outgoing connections in that port
' range. 

' This tells Chilkat FTP2 to establish
' an AUTH TLS secure channel after connecting
' on the standard FTP port 21.
ftp.AuthTls = True

' You'll probably need this property set to True if you're
' behind a NAT router or firewall.
ftp.PassiveUseHostAddr = True

' The Ssl property is for establishing an implicit SSL connection
' on port 990.  Do not set it to True.  The Inovis VAN
' uses explicit encryption (SSL/TLS).
ftp.Ssl = False

' The Chilkat FTP component automatically sends a "FEAT";
' command after connecting.  This allows the component
' to better know the FTP server's capabilities.
' The Invois server doesn't recognize the FEAT command,
' so disable it:
ftp.AutoFeat = False

' Connect, convert to TLS, and login to the FTP server.
Dim success As Boolean = ftp.Connect()
If (success <> True) Then
    Debug.WriteLine(ftp.LastErrorText)
    Exit Sub
Else
    ' LastErrorText contains information even when
    ' successful. This allows you to visually verify
    ' that the secure connection actually occurred.
    Debug.WriteLine(ftp.LastErrorText)
End If


Debug.WriteLine("Connection to Inovis EDI VAN OK!")

' Do whatever you're doing to do ...
' upload files, download files, etc...

success = ftp.Disconnect()