Description:
This command is used to show or set the data port range that FTP server uses
for data connections with passive clients. Valid port ranges are 1025 to 65535.
Form:
Command Handler: SYSD
FTPDATAPORT|FDP|FD [port] [port]
Arguments: Range of ports to use.
Examples:
Show the configured data ports:
Verbose:
*.SYSD FTPDATAPORT<enter>
Response is:
OK\r\n
FtpDataPort= 10000, 15000\r\n
\r\n
Terse:
*.SYSD FD<enter>
Response is:
0\r\n
10000 15000\r\n
\r\n
Set the data ports:
Verbose:
*.SYSD FTPDATAPORT 10000 15000<enter>
Response is:
OK\r\n
\r\n
Terse:
*.SYSD FD 10000 15000<enter>
Response is:
0\r\n
\r\n
Notes:
This is helpful when connecting to the unit when it is behind a NAT/Firewall.
When an FTP client requests a port in passive mode, the unit will return a
port within this set range. The NAT/Firewall that is between the unit and an
open network will need to forward the same range of ports to the unit's
private IP address.