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Libvirt KVM fixed IP address


When playing with KVM LibVirt Vms, I often need them to have fixed IP address.
Ironically, I enjoy fixing them with DHCP.
Here is the “default” configuration I use in order to fix them.
Redefining the "default" network is done with:

virsh --connect qemu:///system net-destroy default
virsh --connect qemu:///system net-undefine default
virsh --connect qemu:///system net-define /tmp/network.xml
virsh --connect qemu:///system net-start default

Feel free to get inspiration:
<network>                                                   
  <name>default</name>                                      
  <uuid>7efbc96f-94e8-443f-820c-615d2e0331d5</uuid>         
  <forward mode='nat'/>                                     
  <bridge name='virbr0' stp='on' delay='0' />               
  <ip address='192.168.122.1' netmask='255.255.255.0'>      
    <dhcp>                                                  
      <range start='192.168.122.2' end='192.168.122.254' /> 
      <host mac="52:54:00:9a:81:00" name="centos6-00.vm.mihamina.netapsys.fr" ip="192.168.122.132" />
      <host mac="52:54:00:e0:0e:8a" name="centos6-01.vm.mihamina.netapsys.fr" ip="192.168.122.118" />
      <host mac="52:54:00:c1:ff:12" name="debian7-00.vm.mihamina.netapsys.fr" ip="192.168.122.144" />
      <host mac="52:54:00:06:a1:f4" name="debian7-01.vm.mihamina.netapsys.fr" ip="192.168.122.68" />
      <host mac="52:54:00:91:d1:96" name="debian7-02.vm.mihamina.netapsys.fr" ip="192.168.122.92" />
      <host mac="52:54:00:22:20:cd" name="fedora19-00.vm.mihamina.netapsys.fr" ip="192.168.122.20" />
      <host mac="52:54:00:1d:0f:9e" name="fedora19-01.vm.mihamina.netapsys.fr" ip="192.168.122.157" />
      <host mac="52:54:00:2a:a6:41" name="gitlab-c6-01.vm.mihamina.netapsys.fr" ip="192.168.122.235" />
      <host mac="52:54:00:f7:30:03" name="gitlab-c6-02.vm.mihamina.netapsys.fr" ip="192.168.122.54" />
      <host mac="52:54:00:86:a0:d6" name="win7-00.vm.mihamina.netapsys.fr" ip="192.168.122.152" />
      <host mac="52:54:00:e8:a8:b8" name="win7-01.vm.mihamina.netapsys.fr" ip="192.168.122.14" />
    </dhcp>                                                 
  </ip>                                                     
</network>                                                  

























































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