KVM networking

virt-install

--network network=default
--network=bridge:br0
--network=bridge:virbr0

Interface types

<interface type='direct'> (The interface type for macvtap is direct)
<interface type='network'>

Configuration examples

  <interface type='direct'>
     <source dev='eno1' mode='bridge'/>
     <model type='virtio'/>
     <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
   </interface>

  <interface type='direct' trustGuestRxFilters='yes'>
     <source dev='eno1' mode='bridge'/>
     <model type='virtio'/>
     <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
   </interface>

   <interface type='network'>
     <mac address='52:54:00:5d:c1:a5'/>
     <source network='default'/>
     <model type='rtl8139'/>
     <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
   </interface>

Read B.9. GUEST CAN REACH OUTSIDE NETWORK, BUT CANNOT REACH HOST WHEN USING MACVTAP INTERFACE https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/virtualization_host_configuration_and_guest_installation_guide/app_macvtap

<interface type='network'>
  <source network='isolated'/>
  <model type='virtio'/>
</interface>

MacVTap (direct)

<interface type=”direct”> 
   <mac address=12:34:56:78:9a:bc/> 
   <source dev=private1 mode=bridge/> 
   <model type=virtio/>    
   <driver name=vhost/> 
</interface>

Related commands

• virsh dumpxml
• virtio
• MacVTap
• Options: trustGuestRxFilters, to enable multicast support
• /etc/libvirt/qemu/networks/default.xml
• brctl show

See also

• Virsh net: KVM networking, virsh net-info, virsh net-define, virsh net-list, virsh net-edit, virsh net-dhcp-leases, virsh net-start, virsh net-autostart, virsh net-list, KVM networking, /etc/libvirt/qemu/networks/default.xml, MacVTap
• KVM networking, virsh net, MacVTap, Macvtap logs, virtio, trustGuestRxFilters
• KVM, Installation, QEMU, virsh, virtinst, libguestfs-tools, libvirt, qemu, Red Hat Virtualization (RHV), MacVTap, Virtio, oVirt, KVM services, KVM networking, KVM graphics, CPU, KVM on ARM