Red Hat Bugzilla – Bug 127553
ncftp 3.1.7-4 sends unexpected FIN while dealing with data socket.
Last modified: 2007-11-30 17:10:45 EST
Description of problem:
ncftp fails and sends a FIN when it talks to the data socket.
Version-Release number of selected component (if applicable):
Connect to an FTP server, and issue 'dir' command in non-passive mode
Steps to Reproduce:
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.
Looks like the ipv6 patch is doing something strange here.
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?
I've notified the uptream maintainers of the ipv6 patch of this
problem and disabled the patch for now.
waiting for a new upstream ipv6 patch