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| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information# |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
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| http://www.apache.org/licenses/LICENSE-2.0 |
| Unless required by applicable law or agreed to in writing, |
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| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
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| |
| |
| About Multiple IP Ranges |
| ------------------------ |
| |
| .. note:: The feature can only be implemented on IPv4 addresses. |
| |
| CloudStack 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 |
| ``createVlanIpRange`` API is extended to add IP ranges also from a |
| different subnet. |
| |
| Ensure that you manually configure the gateway of the new subnet before |
| adding the IP range. Note that CloudStack supports only one gateway for |
| a subnet; overlapping subnets are not currently supported. |
| |
| Use the ``deleteVlanRange`` 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, CloudStack |
| acquires a new IP from the same subnet. If no IP is available in the |
| subnet, the remove operation fails. |
| |
| This feature is supported on KVM, xenServer, and VMware hypervisors. |