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.

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?

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

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Esseci
Aspirant
Jun 11, 2012
I checked the Jumbo Frame check-box and it was turned off.
It doen't work either with that flag turned on or tuned off.
Another usefull information about the problem:
I forwarded the 443 port of the NAS on the router to logon from outside. When I enter the public address the browser ask me for the Nas password but then it stops responding.
Nearly nothing gets out of the Nas (FTP and Https).
StephenB
Guru - Experienced User
Jun 11, 2012
It might be worth setting up an alternative https port on the NAS, and try forwarding that in the router instead. I am thinking that the router itself might allow external management over port 443, so there could be some special handling of that port in the router.

Is your router using PPPoE ADSL? If so, you may need to reduce the MTU size configured in the NAS.
Esseci
Aspirant
Jun 11, 2012
I set up the alternative port 4443 and I forwarded: the same.
The NAS page finally arrives to the browser but several minutes later.
The router is that one the Telecom (an italian provider) gives to the clients (it's not configurable).
How much do I have to reduce the MTU size?

StephenB

Guru - Experienced User

Jun 11, 2012

Esseci wrote:
I set up the alternative port 4443 and I forwarded: the same.
The NAS page finally arrives to the browser but several minutes later.
The router is that one the Telecom (an italian provider) gives to the clients (it's not configurable).
How much do I have to reduce the MTU size?

Esseci wrote:
I set up the alternative port 4443 and I forwarded: the same. The NAS page finally arrives to the browser but several minutes later. The router is that one the Telecom (an italian provider) gives to the clients (it's not configurable). How much do I have to reduce the MTU size?

Maybe start with 1454, and see if there is any improvement.

If your router responds to ping (over the internet), you can measure the MTU using the procedure here: http://muzso.hu/2009/05/17/how-to-deter ... icmp-pings.

Esseci
Aspirant
Jun 11, 2012
Ii found the best MTU with your hint, but the result is the same.
Next days I'm going to change the router to a Netgear one.
I'll inform you about it
Esseci
Aspirant
Jun 14, 2012
Router changed to NETGEAR DGNB1100.
The same !
StephenB
Guru - Experienced User
Jun 14, 2012
Have you tried using active mode?
Esseci
Aspirant
Jun 18, 2012
In active mode it stops at first MLSD:
Stato: Risoluzione dell'indirizzo IP xxxxxxxxxxxxxxxxxxxxx in corso
Stato: Connessione a xxxxxxxxxxxxxxxxx:40...
Stato: Connessione stabilita, in attesa del messaggio di benvenuto...
Risposta: 220 ProFTPD 1.3.3c Server (NETGEAR ReadyNAS) [xx.xx.xx.xx]
Comando: USER xxxxxxx
Risposta: 331 Password required for xxxxxxx
Comando: PASS **********
Risposta: 230 User xxxxx logged in
Comando: SYST
Risposta: 215 UNIX Type: L8
Comando: FEAT
Risposta: 211-Features:
Risposta: MDTM
Risposta: MFMT
Risposta: TVFS
Risposta: UTF8
Risposta: AUTH TLS
Risposta: MFF modify;UNIX.group;UNIX.mode;
Risposta: MLST modify*;perm*;size*;type*;unique*;UNIX.group*;UNIX.mode*;UNIX.owner*;
Risposta: LANG en-US*
Risposta: PBSZ
Risposta: PROT
Risposta: SITE MKDIR
Risposta: SITE RMDIR
Risposta: SITE UTIME
Risposta: SITE SYMLINK
Risposta: REST STREAM
Risposta: SIZE
Risposta: 211 End
Comando: OPTS UTF8 ON
Risposta: 200 UTF8 set to on
Stato: Connesso
Stato: Lettura elenco cartelle...
Comando: PWD
Risposta: 257 "/" is the current directory
Comando: TYPE I
Risposta: 200 Type set to I
Comando: PORT 192,168,10,12,19,138
Risposta: 200 PORT command successful
Comando: MLSD
Errore: Tempo scaduto per la connessione
Errore: Non è stato possibile leggere il contenuto della cartella
pugilares
Aspirant
Jun 24, 2012
So in case of mine I get GnuTLS error 53 right after the _second_ MLSD command within the FTPS session.
I use Windows XP SP3 and Filezilla 3.5.3 client. I tried many tricks already but still without success.
Filezilla utilises passive mode explicit TLS in this case.
Data port range set on ReadyNAS, masquerade set also. DMZ set on the server side NAT to ReadyNAS host IP.
I have also turned OFF Application Layer Gateway service on the client machine. Filezilla and fzsftp added to exceptions in Windows Firewall.

Still GnuTLS error 53 after second MLSD :-(
StephenB
Guru - Experienced User
Jun 25, 2012
FTPeS (explicit TLS) works with my Duo V1 with the FileZilla client. I keep masquerading off, and forward the connection port (I don't use 21) and the passive port range configured on the Duo. I am not seeing these timeout issues.

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FTP server MLSD timeout

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