IPSEC Tests: to per-test setup and tearDown

don't do the setup and teardown in class methods so that with
each test the config is added and deleted. that way we test that
delete actually removes state.
more helpful error codes from VPP for existing IPSEC state.

Change-Id: I5de1578f73b935b420d4cdd85aa98d5fdcc682f6
Signed-off-by: Neale Ranns <nranns@cisco.com>

6 files changed, 594 insertions, 305 deletions

diff --git a/test/template_ipsec.py b/test/template_ipsec.py
index d35cf420d37..ed7c1a32129 100644
--- a/test/template_ipsec.py
+++ b/test/template_ipsec.py
@@ -82,39 +82,46 @@ class TemplateIpsec(VppTestCase):
     |tun_if| ------->  |VPP| ------> |pg1|
      ------             ---           ---
     """
-    ipv4_params = IPsecIPv4Params()
-    ipv6_params = IPsecIPv6Params()
-    params = {ipv4_params.addr_type: ipv4_params,
-              ipv6_params.addr_type: ipv6_params}
 
-    payload = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
+    def ipsec_select_backend(self):
+        """ empty method to be overloaded when necessary """
+        pass
 
-    tun_spd_id = 1
-    tra_spd_id = 2
+    def setUp(self):
+        super(TemplateIpsec, self).setUp()
 
-    vpp_esp_protocol = 1
-    vpp_ah_protocol = 0
+        self.ipv4_params = IPsecIPv4Params()
+        self.ipv6_params = IPsecIPv6Params()
+        self.params = {self.ipv4_params.addr_type: self.ipv4_params,
+                       self.ipv6_params.addr_type: self.ipv6_params}
 
-    @classmethod
-    def ipsec_select_backend(cls):
-        """ empty method to be overloaded when necessary """
-        pass
+        self.payload = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"\
+                       "XXXXXXXXXXXXXXXXXXXXX"
 
-    @classmethod
-    def setUpClass(cls):
-        super(TemplateIpsec, cls).setUpClass()
-        cls.create_pg_interfaces(range(3))
-        cls.interfaces = list(cls.pg_interfaces)
-        for i in cls.interfaces:
+        self.tun_spd_id = 1
+        self.tra_spd_id = 2
+
+        self.vpp_esp_protocol = 1
+        self.vpp_ah_protocol = 0
+
+        self.create_pg_interfaces(range(3))
+        self.interfaces = list(self.pg_interfaces)
+        for i in self.interfaces:
             i.admin_up()
             i.config_ip4()
             i.resolve_arp()
             i.config_ip6()
             i.resolve_ndp()
-        cls.ipsec_select_backend()
+        self.ipsec_select_backend()
 
     def tearDown(self):
         super(TemplateIpsec, self).tearDown()
+
+        for i in self.interfaces:
+            i.admin_down()
+            i.unconfig_ip4()
+            i.unconfig_ip6()
+
         if not self.vpp_dead:
             self.vapi.cli("show hardware")
 
@@ -158,15 +165,14 @@ class TemplateIpsec(VppTestCase):
                 src=self.tun_if.local_addr[params.addr_type]))
         return vpp_tun_sa, scapy_tun_sa
 
-    @classmethod
-    def configure_sa_tra(cls, params):
-        params.scapy_tra_sa = SecurityAssociation(cls.encryption_type,
+    def configure_sa_tra(self, params):
+        params.scapy_tra_sa = SecurityAssociation(self.encryption_type,
                                                   spi=params.vpp_tra_spi,
                                                   crypt_algo=params.crypt_algo,
                                                   crypt_key=params.crypt_key,
                                                   auth_algo=params.auth_algo,
                                                   auth_key=params.auth_key)
-        params.vpp_tra_sa = SecurityAssociation(cls.encryption_type,
+        params.vpp_tra_sa = SecurityAssociation(self.encryption_type,
                                                 spi=params.scapy_tra_spi,
                                                 crypt_algo=params.crypt_algo,
                                                 crypt_key=params.crypt_key,
diff --git a/test/test_ipsec_ah.py b/test/test_ipsec_ah.py
index 928cd53c1f1..9a1c32d9260 100644
--- a/test/test_ipsec_ah.py
+++ b/test/test_ipsec_ah.py
@@ -29,35 +29,33 @@ class TemplateIpsecAh(TemplateIpsec):
      ---             ---           ---
     """
 
-    encryption_type = AH
-
-    @classmethod
-    def setUpClass(cls):
-        super(TemplateIpsecAh, cls).setUpClass()
-        cls.tun_if = cls.pg0
-        cls.tra_if = cls.pg2
-        cls.logger.info(cls.vapi.ppcli("show int addr"))
-        cls.vapi.ipsec_spd_add_del(cls.tun_spd_id)
-        cls.vapi.ipsec_interface_add_del_spd(cls.tun_spd_id,
-                                             cls.tun_if.sw_if_index)
-        cls.vapi.ipsec_spd_add_del(cls.tra_spd_id)
-        cls.vapi.ipsec_interface_add_del_spd(cls.tra_spd_id,
-                                             cls.tra_if.sw_if_index)
-        for _, p in cls.params.items():
-            cls.config_ah_tra(p)
-            cls.configure_sa_tra(p)
-        cls.logger.info(cls.vapi.ppcli("show ipsec"))
-        for _, p in cls.params.items():
-            cls.config_ah_tun(p)
-        cls.logger.info(cls.vapi.ppcli("show ipsec"))
-        for _, p in cls.params.items():
+    def setUp(self):
+        super(TemplateIpsecAh, self).setUp()
+
+        self.encryption_type = AH
+        self.tun_if = self.pg0
+        self.tra_if = self.pg2
+        self.logger.info(self.vapi.ppcli("show int addr"))
+        self.vapi.ipsec_spd_add_del(self.tun_spd_id)
+        self.vapi.ipsec_interface_add_del_spd(self.tun_spd_id,
+                                              self.tun_if.sw_if_index)
+        self.vapi.ipsec_spd_add_del(self.tra_spd_id)
+        self.vapi.ipsec_interface_add_del_spd(self.tra_spd_id,
+                                              self.tra_if.sw_if_index)
+        for _, p in self.params.items():
+            self.config_ah_tra(p)
+            self.configure_sa_tra(p)
+            self.logger.info(self.vapi.ppcli("show ipsec"))
+        for _, p in self.params.items():
+            self.config_ah_tun(p)
+            self.logger.info(self.vapi.ppcli("show ipsec"))
+        for _, p in self.params.items():
             src = socket.inet_pton(p.addr_type, p.remote_tun_if_host)
-            cls.vapi.ip_add_del_route(src, p.addr_len,
-                                      cls.tun_if.remote_addr_n[p.addr_type],
-                                      is_ipv6=p.is_ipv6)
+            self.vapi.ip_add_del_route(src, p.addr_len,
+                                       self.tun_if.remote_addr_n[p.addr_type],
+                                       is_ipv6=p.is_ipv6)
 
-    @classmethod
-    def config_ah_tun(cls, params):
+    def config_ah_tun(self, params):
         addr_type = params.addr_type
         is_ipv6 = params.is_ipv6
         scapy_tun_sa_id = params.scapy_tun_sa_id
@@ -71,54 +69,120 @@ class TemplateIpsecAh(TemplateIpsec):
         remote_tun_if_host = params.remote_tun_if_host
         addr_any = params.addr_any
         addr_bcast = params.addr_bcast
-        cls.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_ah_protocol,
-                                         cls.tun_if.local_addr_n[addr_type],
-                                         cls.tun_if.remote_addr_n[addr_type],
-                                         is_tunnel=1, is_tunnel_ipv6=is_ipv6)
-        cls.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_ah_protocol,
-                                         cls.tun_if.remote_addr_n[addr_type],
-                                         cls.tun_if.local_addr_n[addr_type],
-                                         is_tunnel=1, is_tunnel_ipv6=is_ipv6)
+        self.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_ah_protocol,
+                                          self.tun_if.local_addr_n[addr_type],
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          is_tunnel=1, is_tunnel_ipv6=is_ipv6)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_ah_protocol,
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          self.tun_if.local_addr_n[addr_type],
+                                          is_tunnel=1, is_tunnel_ipv6=is_ipv6)
         l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
         l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_ipv6=is_ipv6,
-                                         protocol=socket.IPPROTO_AH)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_outbound=0,
-                                         is_ipv6=is_ipv6,
-                                         protocol=socket.IPPROTO_AH)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_AH)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_AH)
         l_startaddr = l_stopaddr = socket.inet_pton(addr_type,
                                                     remote_tun_if_host)
-        r_startaddr = r_stopaddr = cls.pg1.remote_addr_n[addr_type]
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=10, policy=3,
-                                         is_outbound=0, is_ipv6=is_ipv6)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         r_startaddr, r_stopaddr, l_startaddr,
-                                         l_stopaddr, priority=10, policy=3,
-                                         is_ipv6=is_ipv6)
-        r_startaddr = r_stopaddr = cls.pg0.local_addr_n[addr_type]
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=20, policy=3,
-                                         is_outbound=0, is_ipv6=is_ipv6)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         r_startaddr, r_stopaddr, l_startaddr,
-                                         l_stopaddr, priority=20, policy=3,
-                                         is_ipv6=is_ipv6)
-
-    @classmethod
-    def config_ah_tra(cls, params):
+        r_startaddr = r_stopaddr = self.pg1.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=10, policy=3,
+                                          is_ipv6=is_ipv6)
+        r_startaddr = r_stopaddr = self.pg0.local_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=20, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=20, policy=3,
+                                          is_ipv6=is_ipv6)
+
+    def unconfig_ah_tun(self, params):
+        addr_type = params.addr_type
+        is_ipv6 = params.is_ipv6
+        scapy_tun_sa_id = params.scapy_tun_sa_id
+        scapy_tun_spi = params.scapy_tun_spi
+        vpp_tun_sa_id = params.vpp_tun_sa_id
+        vpp_tun_spi = params.vpp_tun_spi
+        auth_algo_vpp_id = params.auth_algo_vpp_id
+        auth_key = params.auth_key
+        crypt_algo_vpp_id = params.crypt_algo_vpp_id
+        crypt_key = params.crypt_key
+        remote_tun_if_host = params.remote_tun_if_host
+        addr_any = params.addr_any
+        addr_bcast = params.addr_bcast
+        l_startaddr = l_stopaddr = socket.inet_pton(addr_type,
+                                                    remote_tun_if_host)
+        r_startaddr = r_stopaddr = self.pg0.local_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=20, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=20, policy=3,
+                                          is_ipv6=is_ipv6,
+                                          is_add=0)
+        r_startaddr = r_stopaddr = self.pg1.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=10, policy=3,
+                                          is_ipv6=is_ipv6, is_add=0)
+        l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
+        l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_AH,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_AH,
+                                          is_add=0)
+        self.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_ah_protocol,
+                                          self.tun_if.local_addr_n[addr_type],
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          is_tunnel=1, is_tunnel_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_ah_protocol,
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          self.tun_if.local_addr_n[addr_type],
+                                          is_tunnel=1, is_tunnel_ipv6=is_ipv6,
+                                          is_add=0)
+
+    def config_ah_tra(self, params):
         addr_type = params.addr_type
         is_ipv6 = params.is_ipv6
         scapy_tra_sa_id = params.scapy_tra_sa_id
@@ -131,41 +195,114 @@ class TemplateIpsecAh(TemplateIpsec):
         crypt_key = params.crypt_key
         addr_any = params.addr_any
         addr_bcast = params.addr_bcast
-        cls.vapi.ipsec_sad_add_del_entry(scapy_tra_sa_id, scapy_tra_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_ah_protocol, is_tunnel=0,
-                                         is_tunnel_ipv6=0,
-                                         use_anti_replay=1)
-        cls.vapi.ipsec_sad_add_del_entry(vpp_tra_sa_id, vpp_tra_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_ah_protocol, is_tunnel=0,
-                                         is_tunnel_ipv6=0,
-                                         use_anti_replay=1)
+        self.vapi.ipsec_sad_add_del_entry(scapy_tra_sa_id, scapy_tra_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_ah_protocol, is_tunnel=0,
+                                          is_tunnel_ipv6=0,
+                                          use_anti_replay=1)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tra_sa_id, vpp_tra_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_ah_protocol, is_tunnel=0,
+                                          is_tunnel_ipv6=0,
+                                          use_anti_replay=1)
         l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
         l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, vpp_tra_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_ipv6=is_ipv6,
-                                         protocol=socket.IPPROTO_AH)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, scapy_tra_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_outbound=0,
-                                         is_ipv6=is_ipv6,
-                                         protocol=socket.IPPROTO_AH)
-        l_startaddr = l_stopaddr = cls.tra_if.local_addr_n[addr_type]
-        r_startaddr = r_stopaddr = cls.tra_if.remote_addr_n[addr_type]
-        cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, vpp_tra_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=10, policy=3,
-                                         is_outbound=0, is_ipv6=is_ipv6)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, scapy_tra_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=10,
-                                         policy=3, is_ipv6=is_ipv6)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_AH)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, scapy_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_AH)
+        l_startaddr = l_stopaddr = self.tra_if.local_addr_n[addr_type]
+        r_startaddr = r_stopaddr = self.tra_if.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, scapy_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10,
+                                          policy=3, is_ipv6=is_ipv6)
+
+    def unconfig_ah_tra(self, params):
+        addr_type = params.addr_type
+        is_ipv6 = params.is_ipv6
+        scapy_tra_sa_id = params.scapy_tra_sa_id
+        scapy_tra_spi = params.scapy_tra_spi
+        vpp_tra_sa_id = params.vpp_tra_sa_id
+        vpp_tra_spi = params.vpp_tra_spi
+        auth_algo_vpp_id = params.auth_algo_vpp_id
+        auth_key = params.auth_key
+        crypt_algo_vpp_id = params.crypt_algo_vpp_id
+        crypt_key = params.crypt_key
+        addr_any = params.addr_any
+        addr_bcast = params.addr_bcast
+        l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
+        l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_AH,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, scapy_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_AH,
+                                          is_add=0)
+        l_startaddr = l_stopaddr = self.tra_if.local_addr_n[addr_type]
+        r_startaddr = r_stopaddr = self.tra_if.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, scapy_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10,
+                                          policy=3, is_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_sad_add_del_entry(scapy_tra_sa_id, scapy_tra_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_ah_protocol, is_tunnel=0,
+                                          is_tunnel_ipv6=0,
+                                          use_anti_replay=1,
+                                          is_add=0)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tra_sa_id, vpp_tra_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_ah_protocol, is_tunnel=0,
+                                          is_tunnel_ipv6=0,
+                                          use_anti_replay=1,
+                                          is_add=0)
 
     def tearDown(self):
+        for _, p in self.params.items():
+            self.unconfig_ah_tun(p)
+        for _, p in self.params.items():
+            self.unconfig_ah_tra(p)
+
+        self.vapi.ipsec_interface_add_del_spd(self.tun_spd_id,
+                                              self.tun_if.sw_if_index,
+                                              is_add=0)
+        self.vapi.ipsec_spd_add_del(self.tun_spd_id, is_add=0)
+        self.vapi.ipsec_interface_add_del_spd(self.tra_spd_id,
+                                              self.tra_if.sw_if_index,
+                                              is_add=0)
+        self.vapi.ipsec_spd_add_del(self.tra_spd_id,
+                                    is_add=0)
+        for _, p in self.params.items():
+            src = socket.inet_pton(p.addr_type, p.remote_tun_if_host)
+            self.vapi.ip_add_del_route(
+                src, p.addr_len, self.tun_if.remote_addr_n[p.addr_type],
+                is_ipv6=p.is_ipv6, is_add=0)
+
         super(TemplateIpsecAh, self).tearDown()
         if not self.vpp_dead:
             self.vapi.cli("show hardware")
diff --git a/test/test_ipsec_api.py b/test/test_ipsec_api.py
index fed996e6a59..afad2b1de1f 100644
--- a/test/test_ipsec_api.py
+++ b/test/test_ipsec_api.py
@@ -1,47 +1,55 @@
 import unittest
 
 from framework import VppTestCase, VppTestRunner
-from template_ipsec import TemplateIpsec
+from template_ipsec import TemplateIpsec, IPsecIPv4Params
 
 
 class IpsecApiTestCase(VppTestCase):
     """ IPSec API tests """
 
-    @classmethod
-    def setUpClass(cls):
-        super(IpsecApiTestCase, cls).setUpClass()
-        cls.create_pg_interfaces([0])
-        cls.pg0.config_ip4()
-        cls.pg0.admin_up()
+    def setUp(self):
+        super(IpsecApiTestCase, self).setUp()
+        self.create_pg_interfaces([0])
+        self.pg0.config_ip4()
+        self.pg0.admin_up()
+
+        self.vpp_esp_protocol = 1
+        self.vpp_ah_protocol = 0
+        self.ipv4_params = IPsecIPv4Params()
+
+    def tearDown(self):
+        self.pg0.unconfig_ip4()
+        self.pg0.admin_down()
+        super(IpsecApiTestCase, self).tearDown()
 
     def test_backend_dump(self):
         """ backend dump """
         d = self.vapi.ipsec_backend_dump()
         self.assert_equal(len(d), 2, "number of ipsec backends in dump")
-        self.assert_equal(d[0].protocol, TemplateIpsec.vpp_ah_protocol,
+        self.assert_equal(d[0].protocol, self.vpp_ah_protocol,
                           "ipsec protocol in dump entry")
         self.assert_equal(d[0].index, 0, "index in dump entry")
         self.assert_equal(d[0].active, 1, "active flag in dump entry")
-        self.assert_equal(d[1].protocol, TemplateIpsec.vpp_esp_protocol,
+        self.assert_equal(d[1].protocol, self.vpp_esp_protocol,
                           "ipsec protocol in dump entry")
         self.assert_equal(d[1].index, 0, "index in dump entry")
         self.assert_equal(d[1].active, 1, "active flag in dump entry")
 
     def test_select_valid_backend(self):
         """ select valid backend """
-        self.vapi.ipsec_select_backend(TemplateIpsec.vpp_ah_protocol, 0)
-        self.vapi.ipsec_select_backend(TemplateIpsec.vpp_esp_protocol, 0)
+        self.vapi.ipsec_select_backend(self.vpp_ah_protocol, 0)
+        self.vapi.ipsec_select_backend(self.vpp_esp_protocol, 0)
 
     def test_select_invalid_backend(self):
         """ select invalid backend """
         with self.vapi.assert_negative_api_retval():
-            self.vapi.ipsec_select_backend(TemplateIpsec.vpp_ah_protocol, 200)
+            self.vapi.ipsec_select_backend(self.vpp_ah_protocol, 200)
         with self.vapi.assert_negative_api_retval():
-            self.vapi.ipsec_select_backend(TemplateIpsec.vpp_esp_protocol, 200)
+            self.vapi.ipsec_select_backend(self.vpp_esp_protocol, 200)
 
     def test_select_backend_in_use(self):
         """ attempt to change backend while sad configured """
-        params = TemplateIpsec.ipv4_params
+        params = self.ipv4_params
         addr_type = params.addr_type
         is_ipv6 = params.is_ipv6
         scapy_tun_sa_id = params.scapy_tun_sa_id
@@ -54,24 +62,24 @@ class IpsecApiTestCase(VppTestCase):
         self.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
                                           auth_algo_vpp_id, auth_key,
                                           crypt_algo_vpp_id, crypt_key,
-                                          TemplateIpsec.vpp_ah_protocol,
+                                          self.vpp_ah_protocol,
                                           self.pg0.local_addr_n[addr_type],
                                           self.pg0.remote_addr_n[addr_type],
                                           is_tunnel=1, is_tunnel_ipv6=is_ipv6)
         with self.vapi.assert_negative_api_retval():
             self.vapi.ipsec_select_backend(
-                protocol=TemplateIpsec.vpp_ah_protocol, index=0)
+                protocol=self.vpp_ah_protocol, index=0)
 
         self.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
                                           auth_algo_vpp_id, auth_key,
                                           crypt_algo_vpp_id, crypt_key,
-                                          TemplateIpsec.vpp_ah_protocol,
+                                          self.vpp_ah_protocol,
                                           self.pg0.local_addr_n[addr_type],
                                           self.pg0.remote_addr_n[addr_type],
                                           is_tunnel=1, is_tunnel_ipv6=is_ipv6,
                                           is_add=0)
         self.vapi.ipsec_select_backend(
-            protocol=TemplateIpsec.vpp_ah_protocol, index=0)
+            protocol=self.vpp_ah_protocol, index=0)
 
 
 if __name__ == '__main__':
diff --git a/test/test_ipsec_esp.py b/test/test_ipsec_esp.py
index d22f965a31b..369e9ca1a8d 100644
--- a/test/test_ipsec_esp.py
+++ b/test/test_ipsec_esp.py
@@ -38,35 +38,119 @@ class TemplateIpsecEsp(TemplateIpsec):
      ---             ---           ---
     """
 
-    encryption_type = ESP
-
-    @classmethod
-    def setUpClass(cls):
-        super(TemplateIpsecEsp, cls).setUpClass()
-        cls.tun_if = cls.pg0
-        cls.tra_if = cls.pg2
-        cls.logger.info(cls.vapi.ppcli("show int addr"))
-        cls.vapi.ipsec_spd_add_del(cls.tra_spd_id)
-        cls.vapi.ipsec_interface_add_del_spd(cls.tra_spd_id,
-                                             cls.tra_if.sw_if_index)
-        for _, p in cls.params.items():
-            cls.config_esp_tra(p)
-            cls.configure_sa_tra(p)
-        cls.logger.info(cls.vapi.ppcli("show ipsec"))
-        cls.vapi.ipsec_spd_add_del(cls.tun_spd_id)
-        cls.vapi.ipsec_interface_add_del_spd(cls.tun_spd_id,
-                                             cls.tun_if.sw_if_index)
-        for _, p in cls.params.items():
-            cls.config_esp_tun(p)
-        cls.logger.info(cls.vapi.ppcli("show ipsec"))
-        for _, p in cls.params.items():
+    def setUp(self):
+        super(TemplateIpsecEsp, self).setUp()
+        self.encryption_type = ESP
+        self.tun_if = self.pg0
+        self.tra_if = self.pg2
+        self.logger.info(self.vapi.ppcli("show int addr"))
+        self.vapi.ipsec_spd_add_del(self.tra_spd_id)
+        self.vapi.ipsec_interface_add_del_spd(self.tra_spd_id,
+                                              self.tra_if.sw_if_index)
+        for _, p in self.params.items():
+            self.config_esp_tra(p)
+            self.configure_sa_tra(p)
+        self.logger.info(self.vapi.ppcli("show ipsec"))
+        self.vapi.ipsec_spd_add_del(self.tun_spd_id)
+        self.vapi.ipsec_interface_add_del_spd(self.tun_spd_id,
+                                              self.tun_if.sw_if_index)
+        for _, p in self.params.items():
+            self.config_esp_tun(p)
+        self.logger.info(self.vapi.ppcli("show ipsec"))
+        for _, p in self.params.items():
             src = socket.inet_pton(p.addr_type, p.remote_tun_if_host)
-            cls.vapi.ip_add_del_route(
-                src, p.addr_len, cls.tun_if.remote_addr_n[p.addr_type],
+            self.vapi.ip_add_del_route(
+                src, p.addr_len, self.tun_if.remote_addr_n[p.addr_type],
                 is_ipv6=p.is_ipv6)
 
-    @classmethod
-    def config_esp_tun(cls, params):
+    def tearDown(self):
+        for _, p in self.params.items():
+            self.unconfig_esp_tun(p)
+        for _, p in self.params.items():
+            self.unconfig_esp_tra(p)
+
+        self.vapi.ipsec_interface_add_del_spd(self.tun_spd_id,
+                                              self.tun_if.sw_if_index,
+                                              is_add=0)
+        self.vapi.ipsec_spd_add_del(self.tun_spd_id, is_add=0)
+        self.vapi.ipsec_interface_add_del_spd(self.tra_spd_id,
+                                              self.tra_if.sw_if_index,
+                                              is_add=0)
+        self.vapi.ipsec_spd_add_del(self.tra_spd_id,
+                                    is_add=0)
+        for _, p in self.params.items():
+            src = socket.inet_pton(p.addr_type, p.remote_tun_if_host)
+            self.vapi.ip_add_del_route(
+                src, p.addr_len, self.tun_if.remote_addr_n[p.addr_type],
+                is_ipv6=p.is_ipv6, is_add=0)
+
+        super(TemplateIpsecEsp, self).tearDown()
+        if not self.vpp_dead:
+            self.vapi.cli("show hardware")
+
+    def config_esp_tun(self, params):
+        addr_type = params.addr_type
+        is_ipv6 = params.is_ipv6
+        scapy_tun_sa_id = params.scapy_tun_sa_id
+        scapy_tun_spi = params.scapy_tun_spi
+        vpp_tun_sa_id = params.vpp_tun_sa_id
+        vpp_tun_spi = params.vpp_tun_spi
+        auth_algo_vpp_id = params.auth_algo_vpp_id
+        auth_key = params.auth_key
+        crypt_algo_vpp_id = params.crypt_algo_vpp_id
+        crypt_key = params.crypt_key
+        remote_tun_if_host = params.remote_tun_if_host
+        addr_any = params.addr_any
+        addr_bcast = params.addr_bcast
+        self.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol,
+                                          self.tun_if.local_addr_n[addr_type],
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          is_tunnel=1, is_tunnel_ipv6=is_ipv6)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol,
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          self.tun_if.local_addr_n[addr_type],
+                                          is_tunnel=1, is_tunnel_ipv6=is_ipv6)
+        l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
+        l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_ESP)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          protocol=socket.IPPROTO_ESP,
+                                          is_ipv6=is_ipv6)
+        l_startaddr = l_stopaddr = socket.inet_pton(addr_type,
+                                                    remote_tun_if_host)
+        r_startaddr = r_stopaddr = self.pg1.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_ipv6=is_ipv6, is_outbound=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=10, policy=3,
+                                          is_ipv6=is_ipv6)
+        l_startaddr = l_stopaddr = socket.inet_pton(addr_type,
+                                                    remote_tun_if_host)
+        r_startaddr = r_stopaddr = self.pg0.local_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=20, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=20, policy=3,
+                                          is_ipv6=is_ipv6)
+
+    def unconfig_esp_tun(self, params):
         addr_type = params.addr_type
         is_ipv6 = params.is_ipv6
         scapy_tun_sa_id = params.scapy_tun_sa_id
@@ -80,56 +164,107 @@ class TemplateIpsecEsp(TemplateIpsec):
         remote_tun_if_host = params.remote_tun_if_host
         addr_any = params.addr_any
         addr_bcast = params.addr_bcast
-        cls.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_esp_protocol,
-                                         cls.tun_if.local_addr_n[addr_type],
-                                         cls.tun_if.remote_addr_n[addr_type],
-                                         is_tunnel=1, is_tunnel_ipv6=is_ipv6)
-        cls.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_esp_protocol,
-                                         cls.tun_if.remote_addr_n[addr_type],
-                                         cls.tun_if.local_addr_n[addr_type],
-                                         is_tunnel=1, is_tunnel_ipv6=is_ipv6)
         l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
         l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_ipv6=is_ipv6,
-                                         protocol=socket.IPPROTO_ESP)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_outbound=0,
-                                         protocol=socket.IPPROTO_ESP,
-                                         is_ipv6=is_ipv6)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_ESP,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          protocol=socket.IPPROTO_ESP,
+                                          is_ipv6=is_ipv6,
+                                          is_add=0)
         l_startaddr = l_stopaddr = socket.inet_pton(addr_type,
                                                     remote_tun_if_host)
-        r_startaddr = r_stopaddr = cls.pg1.remote_addr_n[addr_type]
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=10, policy=3,
-                                         is_ipv6=is_ipv6, is_outbound=0)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         r_startaddr, r_stopaddr, l_startaddr,
-                                         l_stopaddr, priority=10, policy=3,
-                                         is_ipv6=is_ipv6)
+        r_startaddr = r_stopaddr = self.pg1.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_ipv6=is_ipv6, is_outbound=0,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=10, policy=3,
+                                          is_ipv6=is_ipv6, is_add=0)
         l_startaddr = l_stopaddr = socket.inet_pton(addr_type,
                                                     remote_tun_if_host)
-        r_startaddr = r_stopaddr = cls.pg0.local_addr_n[addr_type]
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=20, policy=3,
-                                         is_outbound=0, is_ipv6=is_ipv6)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         r_startaddr, r_stopaddr, l_startaddr,
-                                         l_stopaddr, priority=20, policy=3,
-                                         is_ipv6=is_ipv6)
-
-    @classmethod
-    def config_esp_tra(cls, params):
+        r_startaddr = r_stopaddr = self.pg0.local_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=20, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=20, policy=3,
+                                          is_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol,
+                                          self.tun_if.local_addr_n[addr_type],
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          is_tunnel=1, is_tunnel_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol,
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          self.tun_if.local_addr_n[addr_type],
+                                          is_tunnel=1, is_tunnel_ipv6=is_ipv6,
+                                          is_add=0)
+
+    def config_esp_tra(self, params):
+        addr_type = params.addr_type
+        is_ipv6 = params.is_ipv6
+        scapy_tra_sa_id = params.scapy_tra_sa_id
+        scapy_tra_spi = params.scapy_tra_spi
+        vpp_tra_sa_id = params.vpp_tra_sa_id
+        vpp_tra_spi = params.vpp_tra_spi
+        auth_algo_vpp_id = params.auth_algo_vpp_id
+        auth_key = params.auth_key
+        crypt_algo_vpp_id = params.crypt_algo_vpp_id
+        crypt_key = params.crypt_key
+        addr_any = params.addr_any
+        addr_bcast = params.addr_bcast
+        self.vapi.ipsec_sad_add_del_entry(scapy_tra_sa_id, scapy_tra_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol, is_tunnel=0,
+                                          use_anti_replay=1)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tra_sa_id, vpp_tra_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol, is_tunnel=0,
+                                          use_anti_replay=1)
+        l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
+        l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_ESP)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_ESP)
+        l_startaddr = l_stopaddr = self.tra_if.local_addr_n[addr_type]
+        r_startaddr = r_stopaddr = self.tra_if.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, scapy_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_ipv6=is_ipv6)
+
+    def unconfig_esp_tra(self, params):
         addr_type = params.addr_type
         is_ipv6 = params.is_ipv6
         scapy_tra_sa_id = params.scapy_tra_sa_id
@@ -142,37 +277,43 @@ class TemplateIpsecEsp(TemplateIpsec):
         crypt_key = params.crypt_key
         addr_any = params.addr_any
         addr_bcast = params.addr_bcast
-        cls.vapi.ipsec_sad_add_del_entry(scapy_tra_sa_id, scapy_tra_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_esp_protocol, is_tunnel=0,
-                                         use_anti_replay=1)
-        cls.vapi.ipsec_sad_add_del_entry(vpp_tra_sa_id, vpp_tra_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_esp_protocol, is_tunnel=0,
-                                         use_anti_replay=1)
         l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
         l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, vpp_tra_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_ipv6=is_ipv6,
-                                         protocol=socket.IPPROTO_ESP)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, vpp_tra_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_outbound=0,
-                                         is_ipv6=is_ipv6,
-                                         protocol=socket.IPPROTO_ESP)
-        l_startaddr = l_stopaddr = cls.tra_if.local_addr_n[addr_type]
-        r_startaddr = r_stopaddr = cls.tra_if.remote_addr_n[addr_type]
-        cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, vpp_tra_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=10, policy=3,
-                                         is_outbound=0, is_ipv6=is_ipv6)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tra_spd_id, scapy_tra_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=10, policy=3,
-                                         is_ipv6=is_ipv6)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_ESP,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          is_ipv6=is_ipv6,
+                                          protocol=socket.IPPROTO_ESP,
+                                          is_add=0)
+        l_startaddr = l_stopaddr = self.tra_if.local_addr_n[addr_type]
+        r_startaddr = r_stopaddr = self.tra_if.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, vpp_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_outbound=0, is_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tra_spd_id, scapy_tra_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_ipv6=is_ipv6,
+                                          is_add=0)
+        self.vapi.ipsec_sad_add_del_entry(scapy_tra_sa_id, scapy_tra_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol, is_tunnel=0,
+                                          use_anti_replay=1,
+                                          is_add=0)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tra_sa_id, vpp_tra_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol, is_tunnel=0,
+                                          use_anti_replay=1,
+                                          is_add=0)
 
 
 class TestIpsecEsp1(TemplateIpsecEsp, IpsecTraTests, IpsecTunTests):
diff --git a/test/test_ipsec_nat.py b/test/test_ipsec_nat.py
index e9efa032a13..05befe481b4 100644
--- a/test/test_ipsec_nat.py
+++ b/test/test_ipsec_nat.py
@@ -31,20 +31,19 @@ class IPSecNATTestCase(TemplateIpsec):
     icmp_id_in = 6305
     icmp_id_out = 6305
 
-    @classmethod
-    def setUpClass(cls):
-        super(IPSecNATTestCase, cls).setUpClass()
-        cls.tun_if = cls.pg0
-        cls.vapi.ipsec_spd_add_del(cls.tun_spd_id)
-        cls.vapi.ipsec_interface_add_del_spd(cls.tun_spd_id,
-                                             cls.tun_if.sw_if_index)
-        p = cls.ipv4_params
-        cls.config_esp_tun(p)
-        cls.logger.info(cls.vapi.ppcli("show ipsec"))
+    def setUp(self):
+        super(IPSecNATTestCase, self).setUp()
+        self.tun_if = self.pg0
+        self.vapi.ipsec_spd_add_del(self.tun_spd_id)
+        self.vapi.ipsec_interface_add_del_spd(self.tun_spd_id,
+                                              self.tun_if.sw_if_index)
+        p = self.ipv4_params
+        self.config_esp_tun(p)
+        self.logger.info(self.vapi.ppcli("show ipsec"))
         src = socket.inet_pton(p.addr_type, p.remote_tun_if_host)
-        cls.vapi.ip_add_del_route(src, p.addr_len,
-                                  cls.tun_if.remote_addr_n[p.addr_type],
-                                  is_ipv6=p.is_ipv6)
+        self.vapi.ip_add_del_route(src, p.addr_len,
+                                   self.tun_if.remote_addr_n[p.addr_type],
+                                   is_ipv6=p.is_ipv6)
 
     def create_stream_plain(self, src_mac, dst_mac, src_ip, dst_ip):
         return [
@@ -131,8 +130,7 @@ class IPSecNATTestCase(TemplateIpsec):
                     ppp("Unexpected or invalid encrypted packet:", packet))
                 raise
 
-    @classmethod
-    def config_esp_tun(cls, params):
+    def config_esp_tun(self, params):
         addr_type = params.addr_type
         scapy_tun_sa_id = params.scapy_tun_sa_id
         scapy_tun_spi = params.scapy_tun_spi
@@ -144,50 +142,50 @@ class IPSecNATTestCase(TemplateIpsec):
         crypt_key = params.crypt_key
         addr_any = params.addr_any
         addr_bcast = params.addr_bcast
-        cls.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_esp_protocol,
-                                         cls.pg1.remote_addr_n[addr_type],
-                                         cls.tun_if.remote_addr_n[addr_type],
-                                         udp_encap=1)
-        cls.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
-                                         auth_algo_vpp_id, auth_key,
-                                         crypt_algo_vpp_id, crypt_key,
-                                         cls.vpp_esp_protocol,
-                                         cls.tun_if.remote_addr_n[addr_type],
-                                         cls.pg1.remote_addr_n[addr_type],
-                                         udp_encap=1)
+        self.vapi.ipsec_sad_add_del_entry(scapy_tun_sa_id, scapy_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol,
+                                          self.pg1.remote_addr_n[addr_type],
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          udp_encap=1)
+        self.vapi.ipsec_sad_add_del_entry(vpp_tun_sa_id, vpp_tun_spi,
+                                          auth_algo_vpp_id, auth_key,
+                                          crypt_algo_vpp_id, crypt_key,
+                                          self.vpp_esp_protocol,
+                                          self.tun_if.remote_addr_n[addr_type],
+                                          self.pg1.remote_addr_n[addr_type],
+                                          udp_encap=1)
         l_startaddr = r_startaddr = socket.inet_pton(addr_type, addr_any)
         l_stopaddr = r_stopaddr = socket.inet_pton(addr_type, addr_bcast)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr,
-                                         protocol=socket.IPPROTO_ESP)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, is_outbound=0,
-                                         protocol=socket.IPPROTO_ESP)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, remote_port_start=4500,
-                                         remote_port_stop=4500,
-                                         protocol=socket.IPPROTO_UDP)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, remote_port_start=4500,
-                                         remote_port_stop=4500,
-                                         protocol=socket.IPPROTO_UDP,
-                                         is_outbound=0)
-        l_startaddr = l_stopaddr = cls.tun_if.remote_addr_n[addr_type]
-        r_startaddr = r_stopaddr = cls.pg1.remote_addr_n[addr_type]
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, vpp_tun_sa_id,
-                                         l_startaddr, l_stopaddr, r_startaddr,
-                                         r_stopaddr, priority=10, policy=3,
-                                         is_outbound=0)
-        cls.vapi.ipsec_spd_add_del_entry(cls.tun_spd_id, scapy_tun_sa_id,
-                                         r_startaddr, r_stopaddr, l_startaddr,
-                                         l_stopaddr, priority=10, policy=3)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr,
+                                          protocol=socket.IPPROTO_ESP)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, is_outbound=0,
+                                          protocol=socket.IPPROTO_ESP)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, remote_port_start=4500,
+                                          remote_port_stop=4500,
+                                          protocol=socket.IPPROTO_UDP)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, remote_port_start=4500,
+                                          remote_port_stop=4500,
+                                          protocol=socket.IPPROTO_UDP,
+                                          is_outbound=0)
+        l_startaddr = l_stopaddr = self.tun_if.remote_addr_n[addr_type]
+        r_startaddr = r_stopaddr = self.pg1.remote_addr_n[addr_type]
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, vpp_tun_sa_id,
+                                          l_startaddr, l_stopaddr, r_startaddr,
+                                          r_stopaddr, priority=10, policy=3,
+                                          is_outbound=0)
+        self.vapi.ipsec_spd_add_del_entry(self.tun_spd_id, scapy_tun_sa_id,
+                                          r_startaddr, r_stopaddr, l_startaddr,
+                                          l_stopaddr, priority=10, policy=3)
 
     def test_ipsec_nat_tun(self):
         """ IPSec/NAT tunnel test case """
diff --git a/test/test_ipsec_tun_if_esp.py b/test/test_ipsec_tun_if_esp.py
index e10e2a3cfcb..561f1099715 100644
--- a/test/test_ipsec_tun_if_esp.py
+++ b/test/test_ipsec_tun_if_esp.py
@@ -11,12 +11,11 @@ class TemplateIpsecTunIfEsp(TemplateIpsec):
 
     encryption_type = ESP
 
-    @classmethod
-    def setUpClass(cls):
-        super(TemplateIpsecTunIfEsp, cls).setUpClass()
-        cls.tun_if = cls.pg0
-
     def setUp(self):
+        super(TemplateIpsecTunIfEsp, self).setUp()
+
+        self.tun_if = self.pg0
+
         p = self.ipv4_params
         tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
                                       p.scapy_tun_spi, p.crypt_algo_vpp_id,