Opened 17 years ago

Last modified 17 years ago

#1254 closed Bug report

Posting error, moved to FZ 3 site

Reported by: foxtail22 Owned by:
Priority: normal Component: FileZilla Client
Keywords: Cc: foxtail22, Tim Kosse
Component version: Operating system type:
Operating system version:


I am not sure exactly what is happening but I an a friend of my are having the following issue:

Configuration Info

We both have:

  • FileZilla 3.0 b7 installed
  • DLink DNS323 500GB RAID1 servers(Unix L8)on our respective networks configured for FTP
  • NATed networks behind Linksys Routers with MTU=1492
  • Running Windows XP clients
  • Have ports 21, 5000-5100(preferred by prior version of FileZilla, and 65500-65535(preferred by DNS 323 in PASV) forwarded on the routers
  • Set FileZilla b7 to use Servers External IP
  • We both are using DNS name server via because our ISPs change our IPs several times a week.

Whats Different

  • My access is 250/3000 Cable with Auto IP
  • His access is 600/6000 DSL using PPPoE
  • My client PC uses Norton Virus and Firewall SW
  • His client PC uses ATT protection for Yahoo SW
  • Note: We have tried disabling firewalls and Internet Secuity Setting with no affect on results

Issue Outlined

  • My client from my network has no issues connecting with and transferring files to and from his server either in Active or Passive Mode when using 3.0 b7 over his DSL/PPPoE based service.
  • His FZ2.31 client logs on to my server from his network in Active Mode without issues. Passive does not work because it needs servers external IP to work.
  • His FZ 3.0b7 client fails both Active and Passive connections to my server when he tries from his network. However,when he tried from his son's cable serviced network, he was able to log on and tranfer files both in Active and Passive Mode.

I am current thinking that the issue is somehow related to his PPPoE connection but why does FZ 2.31 work in Active Mode while FZ 3.0b7 fails to connect in either mode when he tries to connect to my server from his network. The trace shows that the socket closes as soon as the PASV command is issued and the disconnect then follows.

I have included the trace for Passive Mode. I do not yet have a trace for the Active Mode. I have asked my friend for it and I will add it when I get it.

Status:Resolving IP-Address for

Trace:ControlSocket.cpp(167): CControlSocket::ContinueConnect(011EBA10) m_pEngine=011FF008 caller=012100A8

Status:Connecting to (Servers ext IP):21...
Status:Connection established, waiting for welcome message...


Response:220 NAS-500GB FTP server (Version wu-2.6.2(52) Tue Jan 2 14:13:26 EST 2007) ready.
Command:USER Bill


Response:331 Password required for Bill.
Command:PASS *


Response:230-Welcome to my FTP site.


Response:230-Now is the time ==> Sun Apr 8 13:27:41 2007
Response: 230-The host name is NAS-500GB
Response: 230-You are Bill
Response: 230-There are 1 person in my site, now.
Response: 230-
Response: 230-
Response: 230 User Bill logged in.
Command: SYST

Trace: CFtpControlSocket::OnReceive()

Response: 215 UNIX Type: L8
Command: FEAT

Trace: CFtpControlSocket::OnReceive()

Response: 500 'FEAT': command not understood.
Status: Connected

Trace: CFtpControlSocket::ResetOperation(0)
Trace: CControlSocket::ResetOperation(0)

Status: Retrieving directory listing...

Trace: CFtpControlSocket::SendNextCommand(0)

Command: PWD

Trace: CFtpControlSocket::OnReceive()

Response: 257 "/" is current directory.

Trace: CFtpControlSocket::ResetOperation(0)
Trace: CControlSocket::ResetOperation(0)
Trace: CFtpControlSocket::SendNextCommand(0)
Trace: CFtpControlSocket::ListSend(0)
Trace: state = 1
Trace: CFtpControlSocket::SendNextCommand(0)
Trace: CFtpControlSocket::TransferSend(0)
Trace: state = 1

Command: TYPE I

Trace: CFtpControlSocket::OnReceive()

Response: 200 Type set to I.

Trace: CFtpControlSocket::TransferParseResponse()
Trace: code = 2
Trace: state = 1
Trace: CFtpControlSocket::TransferSend(0)
Trace: state = 2

Command: PASV

Trace: CControlSocket::OnClose()

Error: Disconnected from server

Trace: CFtpControlSocket::ResetOperation(66)
Trace: CControlSocket::ResetOperation(66)
Trace: CFtpControlSocket::ResetOperation(66)
Trace: CControlSocket::ResetOperation(66)

Error: Failed to retrieve directory listing

Change History (1)

comment:1 by Tim Kosse, 17 years ago

Log indicates incorrect router/firewall configuration. Might client and/or server side, impossible to tell from the log.

quote: "Passive does not work because it needs servers external IP
to work" Fix the server configuration.

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