====== 227: Entering Passive Mode (h1,h2,h3,h4,p1,p2) ======

From: https://www.ibm.com/support/knowledgecenter/en/SSLTBW_2.1.0/com.ibm.zos.v2r1.cs3cod0/ftp227-02.htm

<code>
The server received the PASV subcommand. The server successfully entered passive mode and 
is listening on the socket indicated by 
h1,h2,h3,h4,p1,p2, where h1-h4 are the host IP address 
and p1,p2 are the port number.
</code>

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