CLOUDSTACK-2986

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<?xml version='1.0' encoding='utf-8' ?>
<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
%BOOK_ENTITIES;
]>
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<section id="add-remove-nic-ui">
<title>Reconfiguring Physical Networks in VMs</title>
<para>&PRODUCT; provides you the ability to move VMs between networks and reconfigure a VM's
network. You can remove a VM from a physical network and add to a new physical network. You can
also change the default physical network of a virtual machine. With this functionality, hybrid
or traditional server loads can be accommodated with ease. </para>
<para>This feature is supported on XenServer and KVM hypervisors.</para>
<section id="add-nic">
<title>Adding a Physical Network</title>
<orderedlist>
<listitem>
<para>Log in to the CloudPlatform UI as an administrator or end user.</para>
</listitem>
<listitem>
<para>In the left navigation, click Instances.</para>
</listitem>
<listitem>
<para>Choose the VM that you want to work with.</para>
</listitem>
<listitem>
<para>Click the NICs tab.</para>
</listitem>
<listitem>
<para>Click Add network to VM.</para>
<para>The Add network to VM dialog is displayed.</para>
</listitem>
<listitem>
<para>In the drop-down list, select the network that you would like to add this VM
to.</para>
<para> A new NIC is added for this network. You can view the following details in the NICs
page:</para>
<itemizedlist>
<listitem>
<para>ID</para>
</listitem>
<listitem>
<para>Network Name</para>
</listitem>
<listitem>
<para>Type</para>
</listitem>
<listitem>
<para>IP Address</para>
</listitem>
<listitem>
<para>Gateway</para>
</listitem>
<listitem>
<para>Netmask</para>
</listitem>
<listitem>
<para>Is default</para>
</listitem>
<listitem>
<para>CIDR (for IPv6)</para>
</listitem>
</itemizedlist>
</listitem>
</orderedlist>
</section>
<section id="remove-nic">
<title>Removing a Physical Network</title>
<orderedlist>
<listitem>
<para>Log in to the CloudPlatform UI as an administrator or end user.</para>
</listitem>
<listitem>
<para>In the left navigation, click Instances.</para>
</listitem>
<listitem>
<para>Choose the VM that you want to work with.</para>
</listitem>
<listitem>
<para>Click the NICs tab.</para>
</listitem>
<listitem>
<para>Locate the NIC you want to remove.</para>
</listitem>
<listitem>
<para>Click Remove NIC button.<inlinemediaobject>
<imageobject>
<imagedata fileref="./images/remove-nic.png"/>
</imageobject>
<textobject>
<phrase>remove-nic.png: button to remove a NIC</phrase>
</textobject>
</inlinemediaobject></para>
</listitem>
<listitem>
<para>Click Yes to confirm.</para>
</listitem>
</orderedlist>
</section>
<section id="default-nic">
<title>Selecting the Default Physical Network</title>
<orderedlist>
<listitem>
<para>Log in to the CloudPlatform UI as an administrator or end user.</para>
</listitem>
<listitem>
<para>In the left navigation, click Instances.</para>
</listitem>
<listitem>
<para>Choose the VM that you want to work with.</para>
</listitem>
<listitem>
<para>Click the NICs tab.</para>
</listitem>
<listitem>
<para>Locate the NIC you want to work with.</para>
</listitem>
<listitem>
<para>Click the Set default NIC button.<inlinemediaobject>
<imageobject>
<imagedata fileref="./images/set-default-nic.png"/>
</imageobject>
<textobject>
<phrase>set-default-nic.png: button to set a NIC as default one.</phrase>
</textobject>
</inlinemediaobject></para>
</listitem>
<listitem>
<para>Click Yes to confirm.</para>
</listitem>
</orderedlist>
</section>
</section>

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<para>Each VM has just one default network. The virtual router's DHCP reply will set the guest's default gateway as that for the default network. Multiple non-default networks may be added to a guest in addition to the single, required default network. The administrator can control which networks are available as the default network.</para>
<para>Additional networks can either be available to all accounts or be assigned to a specific account. Networks that are available to all accounts are zone-wide. Any user with access to the zone can create a VM with access to that network. These zone-wide networks provide little or no isolation between guests.Networks that are assigned to a specific account provide strong isolation.</para>
<xi:include href="add-additional-guest-network.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
<xi:include href="add-remove-nic-ui.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
<xi:include href="change-network-offering-on-guest-network.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
</section>