The passive command sets the data transmission mode to passive.
The undo passive command sets the data transmission mode to active.
By default, the transmission mode is active.
# Set data transmission mode to passive.
<sysname> ftp 10.1.1.1 Trying 10.1.1.1... Press CTRL+K to abort Connected to 10.1.1.1. 220 FTP service ready. User(10.1.1.1:(none)):ftpuser 331 Password required for ftpuser Enter password: 230 User logged in. [ftp] passive Info: Succeeded in switching passive on.