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<topic xml:lang="en-us" id="nat-address-config">
  <title>Configuring the Address of a NAT Network Interface</title>
  
  <body>
    <p>In NAT mode, the guest network interface is assigned to the IPv4 range
        <codeph>10.0.<varname>x</varname>.0/24</codeph> by default where <varname>x</varname> corresponds to the
      instance of the NAT interface +2. So <varname>x</varname> is 2 when there is only one NAT instance active. In that
      case the guest is assigned to the address <codeph>10.0.2.15</codeph>, the gateway is set to
        <codeph>10.0.2.2</codeph> and the name server can be found at <codeph>10.0.2.3</codeph>. </p>
    <p>If the NAT network needs to be changed, use the following command: </p>
    <pre xml:space="preserve">$ VBoxManage modifyvm <varname>VM-name</varname> \
--natnet1 "192.168/16"</pre>
    <p>This command would reserve the network addresses from <codeph>192.168.0.0</codeph> to
        <codeph>192.168.254.254</codeph> for the first NAT network instance of <varname>VM-name</varname> The guest IP
      would be assigned to <codeph>192.168.0.15</codeph> and the default gateway could be found at
        <codeph>192.168.0.2</codeph>. </p>
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