FTP through NAT. How?

[jacksnyderc]

Wingate 5.2.3
Windows 2000 Server

Have NAT enabled, client PCs are using Wingate server as the
default gateway and for DNS resolution.

In Wingate, FTP Proxy server is disabled, and redirect ENS / WGIC sessions is off (for FTP Proxy service).

FTP connections out are showing up as NAT sessions in the
Activity monitor.

In the ENS configuration, Advanced tab, requests are allowed
in the following different filters:

Specify which requests the recipient has rights for:
Server port number equals 21
Server port number equals 22

Problem: FTP does not work...

Following is the log from my FTP Client (Core FTP Lite 1.3)
*******
31 User ZZZZz OK. Password required
PASS **********
230-User ZZZZz has group access to: www
230 OK. Current restricted directory is /
SYST
215 UNIX Type: L8
Keep alive off...
PWD
257 "/" is your current location
PORT 192,168,0,80,106,226
200 PORT command successful
LIST
Attemping PASV mode transfer...
PASV
226 Since you see this ABOR must've succeeded
Error loading directory...
227 Entering Passive Mode (144,244,153,144,191,180)
*******

Log output stops there.


What could be wrong with my configuration?

Appreciate any help, this is urgent.

Jack

[jacksnyderc]

If in the ENS properties, Policies->Advanced tab, I add
a filter with the criteria:

Client IP number equals <ip address of client pc>

then, all works fine and I can see the directory listing in
the FTP client.

I suspect that some additional ports require to be opened.
What changes have I got to make to my configuration?

Jack