Patches item #1661754, was opened at 2007-02-16 14:36
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Category: Library (Lib)
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Tim Baum (timbaum)
Assigned to: Nobody/Anonymous (nobody)
Summary: ftplib passive ftp problem on multihomed clients

Initial Comment:
When using passive FTP on a multihomed client, data connections should 
originate from the same address as the control connection.  Otherwise, the 
connection can be blocked by stateful firewalls or rejected by the ftp server.  
The ftplib.py library allows the OS to choose the local address for each 
passive data connection, so connections fail intermittently if the operating 
system selects a different local address than used for the initial connection.

The attached patch binds the passive-mode data connection to the same local 
address as the control connection.


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=305470&aid=1661754&group_id=5470
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