core-admin-client/qubesadmin/tests/backup/v3-firewall.xml

<QubesFirewallRules dns="allow" icmp="allow" policy="deny" yumProxy="allow">
  <rule address="0.0.0.0" proto="tcp" netmask="0" port="22"/>
  <rule address="0.0.0.0" proto="tcp" netmask="0" port="9418"/>
  <rule address="192.168.0.1" proto="tcp" port="1234"/>
  <rule address="fedorahosted.org" proto="tcp" port="443"/>
  <rule address="xenbits.xen.org" proto="tcp" port="80"/>
</QubesFirewallRules>