vsftpd not working behind pfsense

Hi all,
I've read the posts about FTP behind pfsense, but still I cannot get it working. My setup is this:
- pfsense with an optional interface 192.168.245.7
- WAN with ftp helper enabled (checkbox disabled)
- vsftpd server running on 192.168.245.77
- port forwarding on port 21 TCP

Either enabling PASV mode or disabling the FTP helper on the WAN interface lead me to the same behavior:

Code:

Wed Jun 23 11:37:21 2010 [pid 6917] [workart] FTP response: Client "192.168.245.7", "230 Login successful."
Wed Jun 23 11:37:21 2010 [pid 6917] [workart] FTP command: Client "192.168.245.7", "SYST"
Wed Jun 23 11:37:21 2010 [pid 6917] [workart] FTP response: Client "192.168.245.7", "215 UNIX Type: L8"
Wed Jun 23 11:37:22 2010 [pid 6917] [workart] FTP command: Client "192.168.245.7", "PORT 192,168,245,7,235,218"
Wed Jun 23 11:37:22 2010 [pid 6917] [workart] FTP response: Client "192.168.245.7", "200 PORT command successful. Consider using PASV."
Wed Jun 23 11:37:22 2010 [pid 6917] [workart] FTP command: Client "192.168.245.7", "LIST"
Wed Jun 23 11:37:42 2010 [pid 6914] [workart] FTP response: Client "192.168.245.7", "425 Failed to establish connection."
Wed Jun 23 11:38:22 2010 [pid 6917] [workart] FTP response: Client "192.168.245.7", "425 Failed to establish connection."

the LIST command freeze each time. I've tried to set the server in PASV mode defining the following in the vsftpd.conf file:

Code:

pasv_enable=YES
# wan address
pasv_address=XX.XX.XX.XX
pasv_max_port=51000
pasv_min_port=50000
port_enable=YES

but the behavior is the same. If I try to connect to the ftp server on the same network I got a correct session:

Code:

Wed Jun 23 11:41:06 2010 [pid 6936] [workart] FTP response: Client "192.168.245.77", "230 Login successful."
Wed Jun 23 11:41:06 2010 [pid 6936] [workart] FTP command: Client "192.168.245.77", "SYST"
Wed Jun 23 11:41:06 2010 [pid 6936] [workart] FTP response: Client "192.168.245.77", "215 UNIX Type: L8"
Wed Jun 23 11:41:07 2010 [pid 6936] [workart] FTP command: Client "192.168.245.77", "PORT 192,168,245,77,166,116"
Wed Jun 23 11:41:07 2010 [pid 6936] [workart] FTP response: Client "192.168.245.77", "200 PORT command successful. Consider using PASV."
Wed Jun 23 11:41:07 2010 [pid 6936] [workart] FTP command: Client "192.168.245.77", "LIST"
Wed Jun 23 11:41:07 2010 [pid 6936] [workart] FTP response: Client "192.168.245.77", "150 Here comes the directory listing."
Wed Jun 23 11:41:07 2010 [pid 6936] [workart] FTP response: Client "192.168.245.77", "226 Directory send OK."

So there is something not working with my pfsense setup, but I'm not sure what it is....any help?