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FE/Qt: bugref:10705. Merging r6149 from doc team's repo.
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| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="nat-adv-alias">
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| 4 | <title>Configuring Aliasing of the NAT Engine</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>By default, the NAT core uses aliasing and uses random ports when generating an alias for a connection. This
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| 8 | works well for the most protocols like SSH, FTP and so on. Though some protocols might need a more transparent
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| 9 | behavior or may depend on the real port number the packet was sent from. You can change the NAT mode by using the
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| 10 | following commands: </p>
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| 11 | <pre xml:space="preserve">$ VBoxManage modifyvm <varname>VM-name</varname> \
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| 12 | --nataliasmode1 proxyonly</pre>
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| 13 | <pre xml:space="preserve">$ VBoxManage modifyvm "Linux Guest" --nataliasmode1 sameports</pre>
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| 14 | <p>The first example disables aliasing and switches NAT into transparent mode, the second example enforces
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| 15 | preserving of port values. These modes can be combined if necessary. </p>
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| 16 | </body>
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| 17 |
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| 18 | </topic>
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