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https://issues.apache.org/jira/browse/NET-320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Bogdan Drozdowski updated NET-320:
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    Attachment: tftp-bind.diff

You probably only need to bind to a particular IP address, not to the whole 
interface (there's no method of doing this, as far as I know).

This small patch adds two constructors: one taking an InetAddress to bind to 
and the other taking a NetworkInterface. The first InetAddress of the given 
interface will be the address the DatagramSocket will be bound to.

> Allow TFTPServer.java to bind to a specific network adapter
> -----------------------------------------------------------
>
>                 Key: NET-320
>                 URL: https://issues.apache.org/jira/browse/NET-320
>             Project: Commons Net
>          Issue Type: Improvement
>          Components: TFTP
>    Affects Versions: 2.0
>            Reporter: Kevin
>              Labels: NetworkInterface, TFTP, TFTPServer
>         Attachments: tftp-bind.diff
>
>   Original Estimate: 24h
>  Remaining Estimate: 24h
>
> It would be very nice to specify exactly which network interface you would 
> like to bind the TFTP server listening port to.  In some cases it's only 
> necessary to open up loopback, in other cases you may only want to bind to a 
> management network.  I would like to see one of two things happen to satisfy 
> this requirement.
>  
> 1) You could allow me to get a handle to the socket such that I can make 
> modifications to it on my own.
> or
> 2) Add a constructor and/or method that allows me to pass a NetworkInterface 
> instance to specify which nic to bind the server to.

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