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<section id="multiple-ip-range">
  <title>About 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. To support this feature, the capability of
      <code>createVlanIpRange</code> API is extended to add IP ranges also from a different
    subnet.</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>Use the <code>deleteVlanRange</code> API to 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>
</section>