Return to description.txt CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / strongswan / testing / tests / route-based / net2net-xfrmi-netns

Annotation of embedaddon/strongswan/testing/tests/route-based/net2net-xfrmi-netns/description.txt, revision 1.1.1.1

1.1       misho       1: This scenario demonstrates a property of <b>XFRM interfaces</b> that allows
                      2: moving them into network namespaces while retaining access to IPsec SAs and
                      3: policies in the original namespace. This enables an IKE daemon in one namespace
                      4: to provide IPsec tunnels for processes in other namespaces without having to
                      5: give them access to the keys and IKE credentials.
                      6: <p/>
                      7: The gateways use <b>route-based forwarding</b> with <b>XFRM interfaces</b>, with
                      8: firewall rules to allow traffic to pass. The IPsec traffic selector used is
                      9: 0.0.0.0/0, however, specific routing is achieved with routes on the XFRM
                     10: interfaces.  The IKE daemon does not install routes for CHILD_SAs with outbound
                     11: interface ID, so static routes are installed for the target subnets.
                     12: <p/>
                     13: The XFRM interface on gateway <b>moon</b> is moved into a new network namespace
                     14: from which a ping is sent to client <b>bob</b>. It is then moved back out and
                     15: <b>alice</b> sends another ping to <b>bob</b> to test if that works too.
                     16: <p/>
                     17: Gateway <b>sun</b> dynamically creates the XFRM interface via updown script
                     18: using the passed unique generated interface ID.
                     19: <p/>
                     20: Note that the dropped packet seen on the <b>XFRM interface</b> on <b>moon</b>
                     21: is an IPv6 Router Solicitation (NDP) sent from that namespace, which doesn't
                     22: match the IPsec policy.