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-rw-r--r--test/test_nat.py31
1 files changed, 31 insertions, 0 deletions
diff --git a/test/test_nat.py b/test/test_nat.py
index 6aff932c024..34726ea41b2 100644
--- a/test/test_nat.py
+++ b/test/test_nat.py
@@ -1676,6 +1676,37 @@ class TestNAT44(MethodHolder):
self.pg_start()
self.pg3.assert_nothing_captured()
+ def test_dynamic_to_static(self):
+ """ Switch from dynamic translation to 1:1NAT """
+ nat_ip = "10.0.0.10"
+ self.tcp_port_out = 6303
+ self.udp_port_out = 6304
+ self.icmp_id_out = 6305
+
+ self.nat44_add_address(self.nat_addr)
+ self.vapi.nat44_interface_add_del_feature(self.pg0.sw_if_index)
+ self.vapi.nat44_interface_add_del_feature(self.pg1.sw_if_index,
+ is_inside=0)
+
+ # dynamic
+ pkts = self.create_stream_in(self.pg0, self.pg1)
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(len(pkts))
+ self.verify_capture_out(capture)
+
+ # 1:1NAT
+ self.nat44_add_static_mapping(self.pg0.remote_ip4, nat_ip)
+ sessions = self.vapi.nat44_user_session_dump(self.pg0.remote_ip4n, 0)
+ self.assertEqual(len(sessions), 0)
+ pkts = self.create_stream_in(self.pg0, self.pg1)
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ capture = self.pg1.get_capture(len(pkts))
+ self.verify_capture_out(capture, nat_ip, True)
+
def test_identity_nat(self):
""" Identity NAT """