Hi,I have an issue with a Duo, I've activated the FTP service without any problem.I can connect via a client (Filezilla) but I have a folder with a lot of files (pictures) and when I move in and I the client sends the MLSD command I receive the answer:150 Opening ASCII mode data connection for MLSDbut then it goes in timeout.I tried to increment the timeout without any results.I tried with another client (Smart Ftp), the same.I installed an ftp server in a pc client in the same network of the Nas and by that server I can list every folder.Perhaps there some memory limit in my Readynas duo ?Thanks

What firmware is running on the Duo?Is the client on the same network as the NAS?

Hi thanks for your quick replay,I updated the firmware to the last one 4.1.8.The problem is with a client outside of the LAN.FTP on NAS is so configured:Port: 40Auth: UserPaasive ports: 5000 - 5004Masq: IP Publlico Obviously on the router ports 40, 5000, 5001,5002,5003,5004 are forwarded to the Nas. I've tried transfering some files to and from the Nas, the only problem is MLSD on the big folders.With a client on the local network there is no problem (but I had to remove the public IP from the masquerade field on the Nas), just a bit slow because of the many files.

I've made some more tests and I have to correct myself:I've tried transfering some files to and from the NasI've tried transferring from outside to the Nas and it's working, but transfering from the Nas to a client ouside the LAN it's very difficult because it continuously falls in timeout and then retrieve of the file.I've tried with an ftp server on a pc on the local network, and the transfer in and from outside it's perfect.

StephenB wrote:There is no need for the masquerade with FileZilla, since it will detect the private address and substitute the public address automatically. Is there any way to access FTP from outside and inside without the need to change the masquerade setting and without Filezilla at the same time?Personally I use Filezilla on my laptop so it's no problem for me. But I would like to give an access to the limited part of my FTP to the guests. I do not have control over what FTP client will be used by guest(s). At the same time I want FTP access for me from both outside and from inside of my LAN. Please, any ideas how to configure my ReadyNAS Duo v1 or my LAN in this matter.

FTP server MLSD timeout | NETGEAR Communities

34 Replies

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pugilares
Aspirant
Jun 05, 2012
Then it seems to work fine! Strange :-)

Thank you very much for the tip!
StephenB
Guru - Experienced User
Jun 05, 2012
It works because the masquerade is only used on the passive mode ports.

Esseci

Aspirant

Jun 05, 2012

StephenB wrote:
There is no need for the masquerade with FileZilla, since it will detect the private address and substitute the public address automatically.

How big is this folder?

If you try active mode, does that work around the problem?

StephenB wrote:
There is no need for the masquerade with FileZilla, since it will detect the private address and substitute the public address automatically. How big is this folder? If you try active mode, does that work around the problem?

The folder contains more than 2500 files, but localy (Client in the LAN) it works perfectly with the NAS.

Outside, in active mode it just connects to the NAS but I cannot navigate in any folder, it goes in timeout but it should depend on some limit in my firewall , I'll have to check it better.

Moreover
1. outside I can connect to an ftp server running on a pc in the same LAN as the Nas and it works perfectly in every folder and I can any download files from the server.
2. If I try to download a file from the NAS (passive mode), it stops and restarts continuously.
Thanks

StephenB
Guru - Experienced User
Jun 05, 2012
Do you have jumbo frames turned on?

Also, does your PC server have a folder of similar size?
Esseci
Aspirant
Jun 06, 2012
Do you have jumbo frames turned on?
Jumbo frames on my network card is turned off.

Also, does your PC server have a folder of similar size?
In the Pc Ftp server I shared the folder on the NAS.

The problem is also visible when I download one file from the server:
- From the Nas FTP the download stops and resumes continuously
- From PC Client it goes straight
StephenB
Guru - Experienced User
Jun 06, 2012
Esseci wrote:
Do you have jumbo frames turned on?
Jumbo frames on my network card is turned off.
Also off on the NAS?
Esseci
Aspirant
Jun 07, 2012
Also off on the NAS?
How do I check it on the NAS ?
StephenB
Guru - Experienced User
Jun 07, 2012
On a Duo V1 (4.1.x firmware), Frontview's network / interfaces configuration includes the MTU. Right underneath is "performance settings" which has a check-box for jumbo frames.

What firmware are you running?
Esseci
Aspirant
Jun 07, 2012
I updated the firmware to the last one 4.1.8.
StephenB
Guru - Experienced User
Jun 08, 2012
Esseci wrote:
I updated the firmware to the last one 4.1.8.
Ok. So you have a V1 platform. The jumbo frame configuration is as described above.

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FTP server MLSD timeout

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