passive mode / connect problem

[BJE]

hi

Client:
OS : win2k
using FlashFXP 2.0 build 902
I'm behind some kind of firewall

Server:
RaidenFTPD


When connecting to ftp server running at port 21 I have no problems, but when the ftp server is using other ports eg. 443 I get this :

215 UNIX Type: L8
REST 100
350 REST Command Ok , restarting position set to 100
REST 0
350 REST Command Ok , restarting position set to 0
PWD
257 "/" is current directory
TYPE A
200 Type set to ASCII.
PASV
227 Entering Passive Mode (xx,xx,xx,xx,5,122)
Data Socket Error: Connection timed out


When trying to connect without passive mode I get this:

215 UNIX Type: L8
REST 100
350 REST Command Ok , restarting position set to 100
REST 0
350 REST Command Ok , restarting position set to 0
PWD
257 "/" is current directory
TYPE A
200 Type set to ASCII.
PORT xx,xx,xx,xx,12,254
425 Cannot open data connection .


In both cases I cant see any directories

I have tried
"Site uses IP Masq/NAT/Non-Routeable IP" without luck


Any1 with a solution to my problem ??

Thanks
/Bje

[unxpected]

try to open port 442 aswell

[bigstar]

It looks like your firewall provides transparent NAT, this is very common.. However it's only offered on port 21. You may not be able to establish data connections on other ports.

[FF69Style]

ive got the same problem on some ftp's snif and i havent got any firewall !