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https://issues.apache.org/jira/browse/NET-462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13411093#comment-13411093
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Sebb commented on NET-462:
--------------------------
URL: http://svn.apache.org/viewvc?rev=1359960&view=rev
Log:
NET-462 FTPClient in PASSIVE_LOCAL_DATA_CONNECTION_MODE cannot work when host
have several different IP
Modified:
commons/proper/net/trunk/src/changes/changes.xml
commons/proper/net/trunk/src/main/java/org/apache/commons/net/ftp/FTPClient.java
> FTPClient in PASSIVE_LOCAL_DATA_CONNECTION_MODE cannot work when host have
> several different IP
> -----------------------------------------------------------------------------------------------
>
> Key: NET-462
> URL: https://issues.apache.org/jira/browse/NET-462
> Project: Commons Net
> Issue Type: Improvement
> Components: FTP
> Affects Versions: 3.1
> Environment: All OS,for example linux or windows and so on
> Reporter: Junsheng Chen
> Priority: Minor
> Labels: ActiveIp, FTPClient, PASSIVE_LOCAL_DATA_CONNECTION_MODE
> Fix For: 3.2
>
> Attachments: ftp-bindlocal.diff
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> When host have several different IP and client setting to
> PASSIVE_LOCAL_DATA_CONNECTION_MODE，_openDataConnection_ creating socket may
> use the unexpected ip。
> For example, The host have two Ips, one for intra and the another for extern,
> only the extern one can be connect with the outside。But when in
> PASSIVE_LOCAL_DATA_CONNECTION_MODE, FTPClient may be select the intra Ip, So
> it didn't work。
> So I change code like this, it can work normally by the specific ip.
> Code:
> In FTPClient._openDataConnection_(String command, String arg)，line 761 change
> as bellow:
> socket = _socketFactory_.createSocket();
>
> // add begin
> // local as client, transfer data must use the appointed local host
> socket.bind(new InetSocketAddress(getHostAddress(), 0));
> // add end
> After log in success,User can set the ip which he want to use by call the
> method in FTPClient:
> setActiveExternalIPAddress(String ip);
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