This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Invalid traffic - Invalid connection helper

Hi All,

I try to connect FTP server which is outside but fail. After checking the log, it shows invalid traffic and the message is "Invalid connection helper. The policy I set is Lan to Wan and any any accept. I have tested another FTP server connection, the connection is successful. Do you have an idea about this problem?

This thread was automatically locked due to age.

Parents

0 LuCar Toni over 5 years ago

Did you enable Scan FTP? This "automatically" enables the FTP Helper and you only need Port 21 for FTP.

__________________________________________________________________________________________________________________
Cancel
Vote Up 0 Vote Down

Cancel

Reply

0 LuCar Toni over 5 years ago

Did you enable Scan FTP? This "automatically" enables the FTP Helper and you only need Port 21 for FTP.

__________________________________________________________________________________________________________________
Cancel
Vote Up 0 Vote Down

Cancel

Children

0 MurMan over 5 years ago in reply to LuCar Toni

No, The Scan FTP function is disable already.
Cancel
Vote Up 0 Vote Down

Cancel
0 LuCar Toni over 5 years ago in reply to MurMan

But you need the scan feature in Port 21 to get the FTP Helper. Did you try to use the Scan FTP for your test?

__________________________________________________________________________________________________________________
Cancel
Vote Up 0 Vote Down

Cancel
0 MurMan over 5 years ago in reply to LuCar Toni

Hi LuCar Toni,

Finally, I create a new firewall rule and test again, the relative log is gone.

The FTP Server can let me login, after login, no file and folder to show. I try to disable IPS service in the XG firewall and test again. The result is the same. But I have to used SG firewall and test the FTP connection to the same FTP server at the sometimes. everything is normal.

I have no idea which function of XG firewall feature to block the connection.
Cancel
Vote Up 0 Vote Down

Cancel
0 Rodrigo Soares over 4 years ago in reply to MurMan

I have the same problem,

Do you fixed the problem?
Cancel
Vote Up 0 Vote Down

Cancel
0 lferrara over 4 years ago in reply to Rodrigo Soares

Rodrigo,

can you check this thread?

https://community.sophos.com/products/xg-firewall/f/firewall-and-policies/96827/ftp-outgoing

Regards
Cancel
Vote Up 0 Vote Down

Cancel