The FTP server always receives traffic on port 21. It sends out traffic with a source port of 20 while using active ftp and with a a random port greater than or equal to 1024 while using passive ftp.
This is a list of Internet socket port numbers used by protocols of the Transport Layer of the Internet Protocol Suite for the establishment of host-to-host communications.Pls see the 20 th and 21 entry.The FTP server always receives traffic on port 21. It sends out traffic with a source port of 20
The FTP server always receives traffic on port 21. It sends out traffic with a source port of 20 while using active ftp and with a a random port greater than or equal to 1024 while using passive ftp.
Well-known Port Numbers
This is a list of Internet socket port numbers used by protocols of the Transport Layer of the Internet Protocol Suite for the establishment of host-to-host communications.Pls see the 20 th and 21 entry.The FTP server always receives traffic on port 21. It sends out traffic with a source port of 20
If u need whole list, go to the following link..
http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers
FTP uses port 21, you can forward the port in your firewall