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[WLC] SCP feature - how it works and its limitations

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Article ID: KB25333 KB Last Updated: 13 Jul 2012Version: 1.0
Summary:
This article provides information on how the SCP feature works and its limitations.
Symptoms:
How the SCP feature works and its limitations.
Cause:

Solution:
You can use the SCP feature on a WLC device in the following scenarios:

  1. Copying a file from the WLC device to the server: 
    MX# copy <local_file_name> scp://ip-addr/[subdirname/]filename
    For example (the /tftpboot folder in the Linux server is used here):
    MXR-2-SS# copy test-file scp://10.142.1.36//tftpboot/test-file-copy
    Username: root
    Password:
    success: copy complete.
    
  2. Copying a file from the server to the WLC device:
    MX# copy scp://ip-addr/[subdirname/]filename <local_file_name>
    For example (the /tftpboot folder in the Linux server is used here):
    MXR-2-SS# copy scp://10.142.1.36//tftpboot/copy-test-file test-file-copied
    Username: root
    Password:
    success: copy complete.
    

Limitations:

  • The WLC is only a SCP client. As such, it cannot be used as a SCP server.

  • So the SCP feature works, when the command is issued from the WLC CLI, either to copy to or from an external SCP server.

  • To use a SCP server, which is not a Linux machine (for example, Windows), you must have a SSH server that can also execute commands and knows the SCP command. WLC establishes a SSH connection to the server and then it sends the SCP command, which the server should be aware of how to execute.

  • For example, WinSCP is a SCP client. As such, the 'talk' between a client (WinSCP) and another client (MX device) will not work.
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