Hi,
Have you ever manage to solve this? I would also like to upload some files from ESX 5.1. I've downloaded the latest BusyBox binary and tried ftpput, but I get "can't connect to remote host (xxx): Connection timed out". I've verified with my FTP server (pure-ftpd) that user succesfully log's in, but when the actual transfer shoudl begin, nothing happens and I get the "connection timed out" message. Has this something to do active/passive ftp mode? Is BusyBox using active or passive ftp mode?