How to get port in FTP protocol from passive mode?

Question

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?

Answer 1

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

Answer 2

the port number is a 16-bit value between 0 and 65535 due to some constraints the authors have decided that all numbers between commas should be 8-bit (between 0 and 255). Thus, the 16-bit port number is represented with 2 8-bit numbers.

In your case the port number will be 230 * 256 + 205 = 59085