FTP

[rn4it]

We has this problem that happens from time to time, and if anyone has had a similiar any information or help would be helpful.

The problem is with ftp, everything will be fine, no one will have made any changes. Then you will be able to ftp out to an external site, login and use cmds that reply back on port 21. However if you use a cmd that replies on port 20, we receive connection closed by remote host.

We are seeing the sesssion run through the correct rule, and there are no drops or reject associated to the session.

any ideas.

 

[ChrisAC]

Looks like you are trying to do active FTP on a Passive FTP server. You are able to do Passive FTP okay, but when you attempt Active FTP (which uses port 20 as well as 21) the server closes the connection. Nothing wrong with the firewall I think.

http://slacksite.com/other/ftp.html

Chris.
**********************
Chris Andrew, CCNA, CCSA
chris@iproute.co.uk
**********************

 

[rn4it]

Passive FTP is checked off in the global properties, We have upgraded to NG-FP3 the FTP is working correctly. The problem was a intermittent issue.

thanks