KVM nodes can't access internet

Hi, I’m trying to test maas and juju in local environment by using KVM machines with no success. This is because nodes can’t access to internet as far I understand. I had connected to a node through ssh and ping google.com with this result:
and this is my networn on virsh:

  <forward mode='nat'>
      <port start='1024' end='65535'/>
  <bridge name='virbr1' stp='off' delay='0'/>
  <mac address='52:54:00:24:37:bb'/>
  <domain name='maastest'/>
  <dns enable='no'/>
  <ip address='' netmask=''>

but that server have mulitple interfaces(I’m not the owner)

these are my network in maas

do I need to concect interfaces inside maas?

Any help will be appreciated