| 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-bind-sockets">
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| 4 | <title>Binding NAT Sockets to a Specific Interface</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>By default, <ph conkeyref="vbox-conkeyref-phrases/product-name"/>'s NAT engine will route TCP/IP packets through
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| 8 | the default interface assigned by the host's TCP/IP stack. The technical reason for this is that the NAT engine
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| 9 | uses sockets for communication. If you want to change this behavior, you can tell the NAT engine to bind to a
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| 10 | particular IP address instead. For example, use the following command: </p>
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| 11 | <pre xml:space="preserve">$ VBoxManage modifyvm <varname>VM-name</varname> \
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| 12 | --natbindip1 "10.45.0.2"</pre>
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| 13 | <p>After this, all outgoing traffic will be sent through the interface with the IP address 10.45.0.2. Ensure that
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| 14 | this interface is up and running before changing the NAT bind address. </p>
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| 15 | </body>
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| 16 |
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| 17 | </topic>
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