Difference between revisions of "KVM networking"

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* [[virtio]]
 
* [[virtio]]
 
* [[MacVTap]]
 
* [[MacVTap]]
* <code>[[lspci]]</code>
+
* Options: <code>[[trustGuestRxFilters]]</code>,  to enable [[multicast]] support
* Options: <code>[[trustGuestRxFilters]]</code> ([[multicast]])
 
 
* <code>[[/etc/libvirt/qemu/networks/default.xml]]</code>
 
* <code>[[/etc/libvirt/qemu/networks/default.xml]]</code>
 
* [[brctl show]]
 
* [[brctl show]]

Revision as of 15:36, 15 November 2020

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'>
     <mac address='52:54:00:ce:12:e4'/>
     <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'>
     <mac address='52:54:00:ce:12:e4'/>
     <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

See also

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