Virsh Manage Networks Handling

Config

• /etc/libvirt/qemu/networks

<network>
  <name>default</name>
  <uuid>77b28eff-3186-4410-adb6-2fb0b96646b9</uuid>
  <forward mode='nat'/>
  <bridge name='virbr0' stp='on' delay='0'/>
  <mac address='52:54:00:08:28:fb'/>
  <ip address='192.168.122.1' netmask='255.255.255.0'>
    <dhcp>
      <range start='192.168.122.2' end='192.168.122.254'/>
    </dhcp>
  </ip>
</network>

virsh list

• virsh net-list

 Name                 State      Autostart     Persistent
----------------------------------------------------------

virsh net-dumpxml default

• virsh net-dumpxml default

<network>
  <name>default</name>
  <uuid>77b28eff-3186-4410-adb6-2fb0b96646b9</uuid>
  <forward mode='nat'/>
  <bridge name='virbr0' stp='on' delay='0'/>
  <mac address='52:54:00:08:28:fb'/>
  <ip address='192.168.122.1' netmask='255.255.255.0'>
    <dhcp>
      <range start='192.168.122.2' end='192.168.122.254'/>
    </dhcp>
  </ip>
</network>

virsh net-dumpxml default

• virsh net-start default

Network default started

virsh net-list

• virsh net-list

 Name                 State      Autostart     Persistent
----------------------------------------------------------
 default              active     no            yes

virsh net-autostart default

• virsh net-autostart default

Network default marked as autostarted

virsh net-destroy default (stop)

• virsh net-destroy default

Network default destroyed

virsh net-edit default

• virsh net-edit default

<network>
  <name>default</name>
  <uuid>77b28eff-3186-4410-adb6-2fb0b96646b9</uuid>
  <forward mode='nat'/>
  <bridge name='virbr0' stp='on' delay='0'/>
  <mac address='52:54:00:08:28:fb'/>
  <ip address='172.16.122.1' netmask='255.255.255.0'>
    <dhcp>
      <range start='172.16.122.2' end='172.16.122.254'/>
    </dhcp>
  </ip>
</network>

New define

• virsh net-define default.xml

Network default defined from default.xml

virsh net-info default

• virsh net-info default

Name:           default
UUID:           77b28eff-3186-4410-adb6-2fb0b96646b9
Active:         no
Persistent:     yes
Autostart:      yes
Bridge:         virbr0

virsh net-destroy default (stop)

• virsh net-destroy default

Network default destroyed