Cannot file transfer to ftp server residing behind the ASA 5510

Unanswered Question
Feb 23rd, 2007

Hi,

configured ASA for allowing ftp requests to my ftp server residing behind the ASA,problem is when a internet client is doing ftp to the ftp server, he can able to connect, but he can't able to transfer the files after few seconds i get a message displaying "connection closed by remote host" how do i solve this? problem also happens when i issue DIR or LS command after logging in to the ftp server.

I have this problem too.
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Kamal Malhotra Fri, 02/23/2007 - 15:17

Hi Anand,

Are we trying to access this FTP server through VPN or do we have a static translation on the ASA? Could you try to run a ping test and see what is the maximum packet size that you get a response at? The command would be like :

ping -l -f 1500

You are expected to get something like :

Packet needs to be fragmented but DF set.

Keep reducing the packet size by 100 and see where you get the respone. We might need to do a little bit of tweaking here and there.

Regards,

Kamal

kaachary Sat, 02/24/2007 - 06:14

Hi,

Do you have fixup/inspect for ftp applied on the ASA ? If not, you might have to apply that.

-Kanishka

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