Bug 127553 - ncftp 3.1.7-4 sends unexpected FIN while dealing with data socket.
Summary: ncftp 3.1.7-4 sends unexpected FIN while dealing with data socket.
Alias: None
Product: Fedora
Classification: Fedora
Component: ncftp
Version: rawhide
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Karsten Hopp
QA Contact: Ben Levenson
Depends On:
Blocks: FC3Target
TreeView+ depends on / blocked
Reported: 2004-07-09 17:18 UTC by Valdis Kletnieks
Modified: 2007-11-30 22:10 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2004-08-19 12:41:22 UTC

Attachments (Terms of Use)

Description Valdis Kletnieks 2004-07-09 17:18:10 UTC
Description of problem:
ncftp fails and sends a FIN when it talks to the data socket.

Version-Release number of selected component (if applicable):

How reproducible:
Connect to an FTP server, and issue 'dir' command in non-passive mode

Steps to Reproduce:
Actual results:

Expected results:

Additional info:
Ethereal indicates that the PORT command is sent, the 3-packet
handshake takes place, and after the first data packet (containing
a '150 Here comes the directory listing.'), the client end sends
a FIN packet.

Backing off to 3.1.7-2 works.

Ethereal capture is available if needed.

Comment 1 Karsten Hopp 2004-07-09 18:19:28 UTC
Looks like the ipv6 patch is doing something strange here. 

Comment 2 Valdis Kletnieks 2004-07-09 18:28:13 UTC
The laptop exhibiting the problem has IPv6 enabled,
but ethereal shows the connection as IPv4.  Could it be a problem
with handling a ::ffff: encapsulated address?

Comment 3 Karsten Hopp 2004-08-09 10:24:12 UTC
I've notified the uptream maintainers of the ipv6 patch of this 
problem and disabled the patch for now. 

Comment 4 Karsten Hopp 2004-08-19 12:41:22 UTC
waiting for a new upstream ipv6 patch 

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