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ftpportpassive-mode

How to get port in FTP protocol from passive mode?

When I entered passive mode in FTP, I have got:

227 Entering Passive Mode (213,180,204,183,230,205).

First 4 numbers are the IP addresses, but what are the two last?

Are they two ports?

Solution

  • the last two are: p1 and p2 from RFC of ftp: http://www.faqs.org/rfcs/rfc959.html

    to get port, use:

    p1 * 256 + p2, then connect to this port