<def-group>
  <definition class="compliance" id="ip_tunnels" version="1">
    <metadata>
      <title>The system must not have IP tunnels configured.</title>
      <affected family="unix">
        <platform>CentOS 4</platform>
		<platform>CentOS 5</platform>
		<platform>Red Hat Enterprise Linux 4</platform>
		<platform>Red Hat Enterprise Linux 5</platform>
      </affected>
      <description>IP tunneling mechanisms can be used to bypass network filtering.</description>
    </metadata>
    <criteria>
      <criterion test_ref="test_ip_tunnels" />
    </criteria>
  </definition>
  
  <unix:interface_test check="all" check_existence="any_exist" comment="Testing Point-To-Point Interfaces" id="test_ip_tunnels" version="1">
    <unix:object object_ref="object_ip_tunnels" />
    <unix:state state_ref="state_ip_tunnels" />
  </unix:interface_test>
  <unix:interface_object comment="Network Interfaces" id="object_ip_tunnels" version="1">
    <unix:name operation="pattern match">^.*$</unix:name>
  </unix:interface_object>

  <unix:interface_state id="state_ip_tunnels" version="1">
    <unix:flag operation="not equal">POINTOPOINT</unix:flag>
  </unix:interface_state>

</def-group>
