<source dir="/foo/bar"/>
       <target dir="/bar/baz"/>
     </filesystem>
-    <interface type="network">
-      <mac address="22:22:33:54:32:10"/>
-      <source network="default"/>
+    <interface type="bridge">
+      <source bridge="br0"/>
       <target dev="testnet0"/>
-      <model type="e1000"/>
+      <model type="virtio"/>
     </interface>
     <interface type="bridge">
       <mac address="22:00:00:44:aa:bf"/>

Domain 'test-for-virtxml' defined successfully.
Changes will take effect after the domain is fully powered off.