227 FTP Reply Code - KB Article #1450Related Articles --
227 Entering Passive Mode (h1,h2,h3,h4,p1,p2).
This is the response given by the server to the PASV command. It indicates that the server is ready for the client to connect to it for the purpose of establishing a data connection. The format of this response is important because the client software must be capable of parsing out the connection information it contains. The values of h1-h4 are the IP address the server is listening on. The values of p1-p2 are used to calculate the port the server is listening on using the following formula: PASV port = (p1 * 256) + p2.