FTP Problem with Synology DS-101g+

I just recieved this Synology Disk Station DS-101g+. I’m very pleased
but can’t get connected by FTP outside the intranet (outside the
router).

I have defined a port 2111 and checked for the FTP-service to be
activated. I have an ASUS router (WL-500G Deluxe) - where I have set
all trafic on port 2111 to be "forward" to the LAN-IP of the
DiskStation.

When I try to Connect with my FTP-program I get connected. The
DiskStation accept username/password - but then it looks like the
DiskStation want to usa an another port(!) It looks like different
ports...

THIS is the FTP-log:

- -
connecting to 2XX.1XX.2XX.58:2111
Connected to 2XX.1XX.2XX.58 port 2111
220 Disk Station FTP server at CCNDISK ready.
USER admin
331 Password required for admin.
PASS (hidden)
230 User admin logged in.
PWD
257 "/" is current directory.
Host type (I): UNIX (standard)
PASV
227 Entering Passive Mode (192,168,1,110,4,77)
connecting to 192.168.1.110:1101
- -
connecting to 192.168.1.110:1101
! Connection failed 192.168.1.110 - connection timed out
! connect: error 0
PORT 10,0,0,2,13,61
500 Illegal PORT range rejected.
! Failed "port":
! Retrieve of folder listing failed (0)


:roll: AnyOne with some experience or suggestion??
THANKS for your help!!

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> connecting to 192.168.1.110:1101
> ! Connection failed 192.168.1.110 - connection timed out
> ! connect: error 0
> PORT 10,0,0,2,13,61
> 500 Illegal PORT range rejected.
> ! Failed "port":
> ! Retrieve of folder listing failed (0)
>
Maybe you should try to use the standard port 21, when this is working
then try to experience with other portnumbers.

Greetings from dunster

The problem you have is with Private network addresses. (192.168.?.?) and
(10.?.?.?.?). Because the the server is behind a NAT box either the client
must use active mode xfers not passive mode xfers or you will have to tell
that FTP server to issue the real world IP address not the private
address.

cheers