A-8
File Transfers
Downloading Switch Software
Note SFTP over SSH version 1 (SSH v1) is not supported. A request from either the
client or the switch (or both) using SSH v1 generates an error message. The
actual text of the error message differs, depending on the client software in
use. Some examples are:
Protocol major versions differ: 2 vs. 1
Connection closed
Protocol major versions differ: 1 vs. 2
Connection closed
Received disconnect from < ip-addr >: /usr/local/
libexec/sftp-server: command not supported
Connection closed
SCP (secure copy) is an implementation of the BSD rcp (Berkeley UNIX
remote copy) command tunneled through an SSH connection.
SCP is used to copy files to and from the switch when security is required.
SCP works with both SSH v1 and SSH v2. Be aware that the most third-party
software application clients that support SCP use SSHv1.
How It Works
The general process for using SCP and SFTP involves three steps:
1. Open an SSH tunnel between your computer and the switch if you haven’t
already done so. (This step assumes that you have already set up SSH on
the switch.)
2. Execute ip ssh filetransfer to tell the switch that you want to enable secure
file transfer.
3. Use a third-party client application for SCP and SFTP commands.
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