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Cynyster · 08-23-2002, 05:59 PM

that's actualy incorrect.
data port can not be lower than 1025. data port can be anything between 1025-65535. and it has no relation to control connection port number."

I beg to differ... in TCP [RFC793] in the Internet Assigned
Numbers Authority (IANA)

port for FTP are allocated as follows:
ftp-data 20/tcp File Transfer [Default Data]
ftp-data 20/udp File Transfer [Default Data]
ftp 21/tcp File Transfer [Control]
ftp 21/udp File Transfer [Control]

Its a demonstatable fact that if you set an FTP server for port 900 the data connection will be made at 899.

08-23-2002, 05:59 PM
Cynyster Junior Member Join Date: Aug 2002 Posts: 5	that's actualy incorrect. data port can not be lower than 1025. data port can be anything between 1025-65535. and it has no relation to control connection port number." I beg to differ... in TCP [RFC793] in the Internet Assigned Numbers Authority (IANA) port for FTP are allocated as follows: ftp-data 20/tcp File Transfer [Default Data] ftp-data 20/udp File Transfer [Default Data] ftp 21/tcp File Transfer [Control] ftp 21/udp File Transfer [Control] Its a demonstatable fact that if you set an FTP server for port 900 the data connection will be made at 899.