{"id":90387,"date":"2026-03-16T18:51:22","date_gmt":"2026-03-16T15:51:22","guid":{"rendered":"https:\/\/cloudspinx.com\/?p=90387"},"modified":"2026-03-16T18:51:22","modified_gmt":"2026-03-16T15:51:22","slug":"kvm-host-network-configurations-using-virt-manager","status":"publish","type":"post","link":"https:\/\/computingforgeeks.com\/kvm-host-network-configurations-using-virt-manager\/","title":{"rendered":"KVM Host Network Configurations using Virt-Manager"},"content":{"rendered":"\n

Networking is one of the most important aspects of any virtualization setup. Changing VMs is not a problem. How the VM connects with each other, the host, and outside world depends on the network of the host. Networking in KVM can be handled at a low level using Linux networking tools. For many administrators, however, Virt-Manager provides a simple graphical interface for managing KVM networking.<\/p>\n\n\n

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Let’s go through some basic network configurations that you can perform using Virtual Machine Manager:<\/p>\n\n\n\n

Creating Virtual Networks<\/h4>\n\n\n\n

<\/a>Launch Virt Manager and select a KVM host then go to Edit<\/strong> \u2192 Connection Details<\/strong>. Navigate to the Virtual Networks<\/strong> tab and click on the plus icon that says Add Network<\/strong> when hovered.<\/p>\n\n\n\n

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A new configuration wizard pops up and you can configure your virtual network:<\/p>\n\n\n\n

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You can specify whichever subnet you want, as long as it does not conflict with any existing virtual network.<\/p>\n\n\n\n

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You can also configure your virtual network using xml<\/code> on virt-manager.<\/p>\n\n\n\n

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Click on Finish<\/strong> when done. Now your new Virtual Network is up and running.<\/p>\n\n\n\n

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Attach Virtual Network to VM<\/h4>\n\n\n\n

<\/a>Now, let’s attach the custom Network to a VM. Open the VM details by selecting the VM, then click<\/strong><\/em> Open<\/strong> \u2192 View<\/strong> \u2192 Details<\/strong> \u2192 NIC<\/strong>.<\/p>\n\n\n\n

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Click<\/strong><\/em> on Network source<\/strong> and select the Virtual Network you just created then click<\/strong><\/em> Apply<\/strong>.<\/p>\n\n\n\n

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After powering on the VM, you can reload the IP address to have a look at the new IP address:<\/p>\n\n\n\n

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Configure Bridged Networking<\/h4>\n\n\n\n

<\/a>By default, virt-manager<\/strong> does not show the bridged network<\/strong> option. You need to manually create a Linux bridge<\/strong> and configure it for use with KVM. For this step, please refer to these guides:<\/p>\n\n\n\n