docs/en-US/add-ip-range.xml

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<section id="add-ip-range">
  <title>Adding Multiple IP Ranges</title>
  <note>
    <para>The feature can only be implemented on IPv4 addresses.</para>
  </note>
  <para>&PRODUCT; provides you with the flexibility to add guest IP ranges from different subnets in
    Basic zones and security groups-enabled Advanced zones. For security groups-enabled Advanced
    zones, it implies multiple subnets can be added to the same VLAN. With the addition of this
    feature, you will be able to add IP address ranges from the same subnet or from a different one
    when IP address are exhausted. This would in turn allows you to employ higher number of subnets
    and thus reduce the address management overhead.</para>
  <para>Ensure that you manually configure the gateway of the new subnet before adding the IP range.
    Note that &PRODUCT; supports only one gateway for a subnet; overlapping subnets are not
    currently supported.</para>
  <para>You can also delete IP ranges. This operation fails if an IP from the remove range is in
    use. If the remove range contains the IP address on which the DHCP server is running, &PRODUCT;
    acquires a new IP from the same subnet. If no IP is available in the subnet, the remove
    operation fails.</para>
  <para>This feature is supported on KVM, xenServer, and VMware hypervisors.</para>
  <orderedlist>
    <listitem>
      <para>Log in to the &PRODUCT; UI as an administrator or end user.</para>
    </listitem>
    <listitem>
      <para>In the left navigation, choose Infrastructure. </para>
    </listitem>
    <listitem>
      <para>On Zones, click View More, then click the zone to which you want to work with..</para>
    </listitem>
    <listitem>
      <para>Click Physical Network.</para>
    </listitem>
    <listitem>
      <para>In the Guest node of the diagram, click Configure.</para>
    </listitem>
    <listitem>
      <para>Click Networks.</para>
    </listitem>
    <listitem>
      <para>Select the networks you want to work with.</para>
    </listitem>
    <listitem>
      <para>Click View IP Ranges.</para>
    </listitem>
    <listitem>
      <para>Click Add IP Range.</para>
      <para>The Add IP Range dialog is displayed, as follows:</para>
      <mediaobject>
        <imageobject>
          <imagedata fileref="./images/add-ip-range.png"/>
        </imageobject>
        <textobject>
          <phrase>add-ip-range.png: adding an IP range to a network.</phrase>
        </textobject>
      </mediaobject>
    </listitem>
    <listitem>
      <para>Specify the following:</para>
      <para>All the fields are mandatory.</para>
      <itemizedlist>
        <listitem>
          <para><emphasis role="bold">Gateway</emphasis>: The gateway for the tier you create.
            Ensure that the gateway is within the Super CIDR range that you specified while creating
            the VPC, and is not overlapped with the CIDR of any existing tier within the VPC.</para>
        </listitem>
        <listitem>
          <para><emphasis role="bold">Netmask</emphasis>: The netmask for the tier you create. </para>
          <para>For example, if the VPC CIDR is 10.0.0.0/16 and the network tier CIDR is
            10.0.1.0/24, the gateway of the tier is 10.0.1.1, and the netmask of the tier is
            255.255.255.0.</para>
        </listitem>
        <listitem>
          <para><emphasis role="bold">Start IP/ End IP</emphasis>: A range of IP addresses that are
            accessible from the Internet and will be allocated to guest VMs. Enter the first and
            last IP addresses that define a range that &PRODUCT; can assign to guest VMs .</para>
        </listitem>
      </itemizedlist>
    </listitem>
    <listitem>
      <para>Click OK.</para>
    </listitem>
  </orderedlist>
</section>