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-rw-r--r--test/test_gre.py78
1 files changed, 78 insertions, 0 deletions
diff --git a/test/test_gre.py b/test/test_gre.py
index c28c04b988c..96fe3042b4e 100644
--- a/test/test_gre.py
+++ b/test/test_gre.py
@@ -1050,6 +1050,84 @@ class TestGRE(VppTestCase):
gre_if.admin_down()
gre_if.unconfig_ip4()
+ def test_mgre6(self):
+ """ mGRE IPv6 tunnel Tests """
+
+ self.pg0.ip6_enable()
+
+ for itf in self.pg_interfaces[3:]:
+ #
+ # one underlay nh for each overlay/tunnel peer
+ #
+ itf.config_ip6()
+ itf.generate_remote_hosts(4)
+ itf.configure_ipv6_neighbors()
+
+ #
+ # Create an L3 GRE tunnel.
+ # - set it admin up
+ # - assign an IP Addres
+ # - Add a route via the tunnel
+ #
+ gre_if = VppGreInterface(self,
+ itf.local_ip6,
+ "::",
+ mode=(VppEnum.vl_api_gre_tunnel_mode_t.
+ GRE_API_TUNNEL_MODE_MP))
+ gre_if.add_vpp_config()
+ gre_if.admin_up()
+ gre_if.config_ip6()
+ gre_if.generate_remote_hosts(4)
+
+ #
+ # for-each peer
+ #
+ for ii in range(1, 4):
+ route_addr = "4::%d" % ii
+
+ #
+ # route traffic via the peer
+ #
+ route_via_tun = VppIpRoute(
+ self, route_addr, 128,
+ [VppRoutePath(gre_if._remote_hosts[ii].ip6,
+ gre_if.sw_if_index)])
+ route_via_tun.add_vpp_config()
+
+ #
+ # Add a NHRP entry resolves the peer
+ #
+ nhrp = VppNhrp(self, gre_if,
+ gre_if._remote_hosts[ii].ip6,
+ itf._remote_hosts[ii].ip6)
+ nhrp.add_vpp_config()
+
+ #
+ # Send a packet stream that is routed into the tunnel
+ # - packets are GRE encapped
+ #
+ tx = self.create_stream_ip6(self.pg0, "5::5", route_addr)
+ rx = self.send_and_expect(self.pg0, tx, itf)
+ self.verify_tunneled_6o6(self.pg0, rx, tx,
+ itf.local_ip6,
+ gre_if._remote_hosts[ii].ip6)
+
+ #
+ # delete and re-add the NHRP
+ #
+ nhrp.remove_vpp_config()
+ self.send_and_assert_no_replies(self.pg0, tx)
+
+ nhrp.add_vpp_config()
+ rx = self.send_and_expect(self.pg0, tx, itf)
+ self.verify_tunneled_6o6(self.pg0, rx, tx,
+ itf.local_ip6,
+ gre_if._remote_hosts[ii].ip6)
+ gre_if.admin_down()
+ gre_if.unconfig_ip4()
+ itf.unconfig_ip6()
+ self.pg0.ip6_disable()
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)