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43 lines
2.5 KiB
XML
43 lines
2.5 KiB
XML
<?xml version='1.0' encoding='utf-8' ?>
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<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
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%BOOK_ENTITIES;
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]>
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<!-- Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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-->
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<section id="multiple-ip-range">
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<title>About Multiple IP Ranges</title>
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<note>
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<para>The feature can only be implemented on IPv4 addresses.</para>
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</note>
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<para>&PRODUCT; provides you with the flexibility to add guest IP ranges from different subnets in
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Basic zones and security groups-enabled Advanced zones. For security groups-enabled Advanced
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zones, it implies multiple subnets can be added to the same VLAN. With the addition of this
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feature, you will be able to add IP address ranges from the same subnet or from a different one
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when IP address are exhausted. This would in turn allows you to employ higher number of subnets
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and thus reduce the address management overhead. To support this feature, the capability of
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<code>createVlanIpRange</code> API is extended to add IP ranges also from a different
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subnet.</para>
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<para>Ensure that you manually configure the gateway of the new subnet before adding the IP range.
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Note that &PRODUCT; supports only one gateway for a subnet; overlapping subnets are not
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currently supported.</para>
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<para>Use the <code>deleteVlanRange</code> API to delete IP ranges. This operation fails if an IP
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from the remove range is in use. If the remove range contains the IP address on which the DHCP
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server is running, &PRODUCT; acquires a new IP from the same subnet. If no IP is available in
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the subnet, the remove operation fails.</para>
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<para>This feature is supported on KVM, xenServer, and VMware hypervisors.</para>
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</section>
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