def config_sa_tun(self, p):
config_tun_params(p, self.encryption_type, self.tun_if)
p.tun_sa_out = VppIpsecSA(self,
p.scapy_tun_sa_id,
p.scapy_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.remote_addr[p.addr_type],
self.tun_if.local_addr[p.addr_type],
flags=p.flags)
p.tun_sa_out.add_vpp_config()
p.tun_sa_in = VppIpsecSA(self,
p.vpp_tun_sa_id,
p.vpp_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.remote_addr[p.addr_type],
self.tun_if.local_addr[p.addr_type],
flags=p.flags)
p.tun_sa_in.add_vpp_config()
def config_sa_tra(self, p):
config_tun_params(p, self.encryption_type, self.tun_if)
p.tun_sa_out = VppIpsecSA(self, p.scapy_tun_sa_id, p.scapy_tun_spi,
p.auth_algo_vpp_id, p.auth_key,
p.crypt_algo_vpp_id, p.crypt_key,
self.vpp_esp_protocol)
p.tun_sa_out.add_vpp_config()
p.tun_sa_in = VppIpsecSA(self, p.vpp_tun_sa_id, p.vpp_tun_spi,
p.auth_algo_vpp_id, p.auth_key,
p.crypt_algo_vpp_id, p.crypt_key,
self.vpp_esp_protocol)
p.tun_sa_in.add_vpp_config()
def rekey(self, p):
#
# change the key and the SPI
#
p.crypt_key = 'X' + p.crypt_key[1:]
p.scapy_tun_spi += 1
p.scapy_tun_sa_id += 1
p.vpp_tun_spi += 1
p.vpp_tun_sa_id += 1
p.tun_if.local_spi = p.vpp_tun_spi
p.tun_if.remote_spi = p.scapy_tun_spi
config_tun_params(p, self.encryption_type, self.tun_if)
p.tun_sa_in = VppIpsecSA(self,
p.scapy_tun_sa_id,
p.scapy_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.local_addr[p.addr_type],
self.tun_if.remote_addr[p.addr_type],
flags=p.flags,
salt=p.salt)
p.tun_sa_out = VppIpsecSA(self,
p.vpp_tun_sa_id,
p.vpp_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.remote_addr[p.addr_type],
self.tun_if.local_addr[p.addr_type],
flags=p.flags,
salt=p.salt)
p.tun_sa_in.add_vpp_config()
p.tun_sa_out.add_vpp_config()
self.vapi.ipsec_tunnel_if_set_sa(sw_if_index=p.tun_if.sw_if_index,
sa_id=p.tun_sa_in.id,
is_outbound=1)
self.vapi.ipsec_tunnel_if_set_sa(sw_if_index=p.tun_if.sw_if_index,
sa_id=p.tun_sa_out.id,
is_outbound=0)
self.logger.info(self.vapi.cli("sh ipsec sa"))
def rekey(self, p):
#
# change the key and the SPI
#
p.crypt_key = 'X' + p.crypt_key[1:]
p.scapy_tun_spi += 1
p.scapy_tun_sa_id += 1
p.vpp_tun_spi += 1
p.vpp_tun_sa_id += 1
p.tun_if.local_spi = p.vpp_tun_spi
p.tun_if.remote_spi = p.scapy_tun_spi
config_tun_params(p, self.encryption_type, self.tun_if)
p.tun_sa_in = VppIpsecSA(self,
p.scapy_tun_sa_id,
p.scapy_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.local_addr[p.addr_type],
self.tun_if.remote_addr[p.addr_type],
flags=p.flags,
salt=p.salt)
p.tun_sa_out = VppIpsecSA(self,
p.vpp_tun_sa_id,
p.vpp_tun_spi,
p.auth_algo_vpp_id,
p.auth_key,
p.crypt_algo_vpp_id,
p.crypt_key,
self.vpp_esp_protocol,
self.tun_if.remote_addr[p.addr_type],
self.tun_if.local_addr[p.addr_type],
flags=p.flags,
salt=p.salt)
p.tun_sa_in.add_vpp_config()
p.tun_sa_out.add_vpp_config()
self.vapi.ipsec_tunnel_if_set_sa(sw_if_index=p.tun_if.sw_if_index,
sa_id=p.tun_sa_in.id,
is_outbound=1)
self.vapi.ipsec_tunnel_if_set_sa(sw_if_index=p.tun_if.sw_if_index,
sa_id=p.tun_sa_out.id,
is_outbound=0)
self.logger.info(self.vapi.cli("sh ipsec sa"))
def setUp(self):
super(TestIpsec6MultiTunIfEsp, self).setUp()
self.tun_if = self.pg0
self.multi_params = []
for ii in range(10):
p = copy.copy(self.ipv6_params)
p.remote_tun_if_host = "1111::%d" % (ii + 1)
p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
p.scapy_tun_spi = p.scapy_tun_spi + ii
p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
p.vpp_tun_spi = p.vpp_tun_spi + ii
p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
p.scapy_tra_spi = p.scapy_tra_spi + ii
p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
p.vpp_tra_spi = p.vpp_tra_spi + ii
config_tun_params(p, self.encryption_type, self.tun_if)
self.multi_params.append(p)
p.tun_if = VppIpsecTunInterface(self,
self.pg0,
p.vpp_tun_spi,
p.scapy_tun_spi,
p.crypt_algo_vpp_id,
p.crypt_key,
p.crypt_key,
p.auth_algo_vpp_id,
p.auth_key,
p.auth_key,
is_ip6=True)
p.tun_if.add_vpp_config()
p.tun_if.admin_up()
p.tun_if.config_ip6()
VppIpRoute(self,
p.remote_tun_if_host,
128, [
VppRoutePath(p.tun_if.remote_ip6,
0xffffffff,
proto=DpoProto.DPO_PROTO_IP6)
],
is_ip6=1).add_vpp_config()
def config_network(self, p):
config_tun_params(p, self.encryption_type, self.tun_if)
p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
p.scapy_tun_spi, p.crypt_algo_vpp_id,
p.crypt_key, p.crypt_key,
p.auth_algo_vpp_id, p.auth_key,
p.auth_key)
p.tun_if.add_vpp_config()
p.tun_if.admin_up()
p.tun_if.config_ip4()
self.logger.info(self.vapi.cli("sh ipsec sa 0"))
self.logger.info(self.vapi.cli("sh ipsec sa 1"))
p.route = VppIpRoute(self, p.remote_tun_if_host, 32,
[VppRoutePath(p.tun_if.remote_ip4, 0xffffffff)])
p.route.add_vpp_config()
def config_network(self, params):
self.net_objs = []
self.tun_if = self.pg0
self.tra_if = self.pg2
self.logger.info(self.vapi.ppcli("show int addr"))
self.tra_spd = VppIpsecSpd(self, self.tra_spd_id)
self.tra_spd.add_vpp_config()
self.net_objs.append(self.tra_spd)
self.tun_spd = VppIpsecSpd(self, self.tun_spd_id)
self.tun_spd.add_vpp_config()
self.net_objs.append(self.tun_spd)
b = VppIpsecSpdItfBinding(self, self.tra_spd, self.tra_if)
b.add_vpp_config()
self.net_objs.append(b)
b = VppIpsecSpdItfBinding(self, self.tun_spd, self.tun_if)
b.add_vpp_config()
self.net_objs.append(b)
for p in params:
self.config_ah_tra(p)
config_tra_params(p, self.encryption_type)
for p in params:
self.config_ah_tun(p)
config_tun_params(p, self.encryption_type, self.tun_if)
for p in params:
d = DpoProto.DPO_PROTO_IP6 if p.is_ipv6 else DpoProto.DPO_PROTO_IP4
r = VppIpRoute(
self,
p.remote_tun_if_host,
p.addr_len,
[
VppRoutePath(self.tun_if.remote_addr[p.addr_type],
0xFFFFFFFF,
proto=d)
],
)
r.add_vpp_config()
self.net_objs.append(r)
self.logger.info(self.vapi.ppcli("show ipsec all"))
def config_network(self, p):
config_tun_params(p, self.encryption_type, self.tun_if)
p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
p.scapy_tun_spi,
p.crypt_algo_vpp_id,
p.crypt_key, p.crypt_key,
p.auth_algo_vpp_id, p.auth_key,
p.auth_key,
salt=p.salt)
p.tun_if.add_vpp_config()
p.tun_if.admin_up()
p.tun_if.config_ip4()
self.logger.info(self.vapi.cli("sh ipsec sa 0"))
self.logger.info(self.vapi.cli("sh ipsec sa 1"))
p.route = VppIpRoute(self, p.remote_tun_if_host, 32,
[VppRoutePath(p.tun_if.remote_ip4,
0xffffffff)])
p.route.add_vpp_config()
def setUp(self):
super(TestIpsec6MultiTunIfEsp, self).setUp()
self.tun_if = self.pg0
self.multi_params = []
for ii in range(10):
p = copy.copy(self.ipv6_params)
p.remote_tun_if_host = "1111::%d" % (ii + 1)
p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
p.scapy_tun_spi = p.scapy_tun_spi + ii
p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
p.vpp_tun_spi = p.vpp_tun_spi + ii
p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
p.scapy_tra_spi = p.scapy_tra_spi + ii
p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
p.vpp_tra_spi = p.vpp_tra_spi + ii
config_tun_params(p, self.encryption_type, self.tun_if)
self.multi_params.append(p)
p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
p.scapy_tun_spi,
p.crypt_algo_vpp_id,
p.crypt_key, p.crypt_key,
p.auth_algo_vpp_id, p.auth_key,
p.auth_key, is_ip6=True)
p.tun_if.add_vpp_config()
p.tun_if.admin_up()
p.tun_if.config_ip6()
VppIpRoute(self, p.remote_tun_if_host, 128,
[VppRoutePath(p.tun_if.remote_ip6,
0xffffffff,
proto=DpoProto.DPO_PROTO_IP6)],
is_ip6=1).add_vpp_config()
def setUp(self):
super(TestIpsec4MultiTunIfEsp, self).setUp()
self.tun_if = self.pg0
self.multi_params = []
for ii in range(10):
p = copy.copy(self.ipv4_params)
p.remote_tun_if_host = "1.1.1.%d" % (ii + 1)
p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
p.scapy_tun_spi = p.scapy_tun_spi + ii
p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
p.vpp_tun_spi = p.vpp_tun_spi + ii
p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
p.scapy_tra_spi = p.scapy_tra_spi + ii
p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
p.vpp_tra_spi = p.vpp_tra_spi + ii
config_tun_params(p, self.encryption_type, self.tun_if)
self.multi_params.append(p)
p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
p.scapy_tun_spi,
p.crypt_algo_vpp_id,
p.crypt_key, p.crypt_key,
p.auth_algo_vpp_id, p.auth_key,
p.auth_key)
p.tun_if.add_vpp_config()
p.tun_if.admin_up()
p.tun_if.config_ip4()
VppIpRoute(self, p.remote_tun_if_host, 32,
[VppRoutePath(p.tun_if.remote_ip4,
0xffffffff)]).add_vpp_config()
def setUp(self):
super(TestIpsec4MultiTunIfEsp, self).setUp()
self.tun_if = self.pg0
self.multi_params = []
for ii in range(10):
p = copy.copy(self.ipv4_params)
p.remote_tun_if_host = "1.1.1.%d" % (ii + 1)
p.scapy_tun_sa_id = p.scapy_tun_sa_id + ii
p.scapy_tun_spi = p.scapy_tun_spi + ii
p.vpp_tun_sa_id = p.vpp_tun_sa_id + ii
p.vpp_tun_spi = p.vpp_tun_spi + ii
p.scapy_tra_sa_id = p.scapy_tra_sa_id + ii
p.scapy_tra_spi = p.scapy_tra_spi + ii
p.vpp_tra_sa_id = p.vpp_tra_sa_id + ii
p.vpp_tra_spi = p.vpp_tra_spi + ii
config_tun_params(p, self.encryption_type, self.tun_if)
self.multi_params.append(p)
p.tun_if = VppIpsecTunInterface(self, self.pg0, p.vpp_tun_spi,
p.scapy_tun_spi,
p.crypt_algo_vpp_id,
p.crypt_key, p.crypt_key,
p.auth_algo_vpp_id, p.auth_key,
p.auth_key)
p.tun_if.add_vpp_config()
p.tun_if.admin_up()
p.tun_if.config_ip4()
VppIpRoute(self, p.remote_tun_if_host, 32,
[VppRoutePath(p.tun_if.remote_ip4,
0xffffffff)]).add_vpp_config()
def test_gso_ipsec(self):
""" GSO IPSEC test """
#
# Send jumbo frame with gso enabled only on input interface and
# create IPIP tunnel on VPP pg0.
#
#
# enable ipip4
#
self.ipip4.add_vpp_config()
self.vapi.feature_gso_enable_disable(
sw_if_index=self.ipip4.sw_if_index, enable_disable=1)
# Add IPv4 routes via tunnel interface
self.ip4_via_ip4_tunnel = VppIpRoute(self, "172.16.10.0", 24, [
VppRoutePath("0.0.0.0",
self.ipip4.sw_if_index,
proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)
])
self.ip4_via_ip4_tunnel.add_vpp_config()
# IPSec config
self.ipv4_params = IPsecIPv4Params()
self.encryption_type = ESP
config_tun_params(self.ipv4_params, self.encryption_type, self.ipip4)
self.tun_sa_in_v4 = VppIpsecSA(
self, self.ipv4_params.vpp_tun_sa_id, self.ipv4_params.vpp_tun_spi,
self.ipv4_params.auth_algo_vpp_id, self.ipv4_params.auth_key,
self.ipv4_params.crypt_algo_vpp_id, self.ipv4_params.crypt_key,
VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP)
self.tun_sa_in_v4.add_vpp_config()
self.tun_sa_out_v4 = VppIpsecSA(
self, self.ipv4_params.scapy_tun_sa_id,
self.ipv4_params.scapy_tun_spi, self.ipv4_params.auth_algo_vpp_id,
self.ipv4_params.auth_key, self.ipv4_params.crypt_algo_vpp_id,
self.ipv4_params.crypt_key,
VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP)
self.tun_sa_out_v4.add_vpp_config()
self.tun_protect_v4 = VppIpsecTunProtect(self, self.ipip4,
self.tun_sa_out_v4,
[self.tun_sa_in_v4])
self.tun_protect_v4.add_vpp_config()
# Set interface up and enable IP on it
self.ipip4.admin_up()
self.ipip4.set_unnumbered(self.pg0.sw_if_index)
#
# IPv4/IPv4 - IPSEC
#
ipsec44 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [ipsec44], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assertEqual(rx[IP].proto, 50) # ESP
self.assertEqual(rx[ESP].spi, self.ipv4_params.scapy_tun_spi)
inner = self.ipv4_params.vpp_tun_sa.decrypt(rx[IP])
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.10.3")
size += inner[IP].len - 20 - 20
self.assertEqual(size, 65200)
self.ip6_via_ip4_tunnel = VppIpRoute(self, "fd01:10::", 64, [
VppRoutePath("::",
self.ipip4.sw_if_index,
proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)
])
self.ip6_via_ip4_tunnel.add_vpp_config()
#
# IPv4/IPv6 - IPSEC
#
ipsec46 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [ipsec46], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IP].src, self.pg0.local_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
self.assertEqual(rx[IP].proto, 50) # ESP
self.assertEqual(rx[ESP].spi, self.ipv4_params.scapy_tun_spi)
inner = self.ipv4_params.vpp_tun_sa.decrypt(rx[IP])
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:10::3")
size += inner[IPv6].plen - 20
self.assertEqual(size, 65200)
# disable IPSec
self.tun_protect_v4.remove_vpp_config()
self.tun_sa_in_v4.remove_vpp_config()
self.tun_sa_out_v4.remove_vpp_config()
#
# disable ipip4
#
self.vapi.feature_gso_enable_disable(self.ipip4.sw_if_index,
enable_disable=0)
self.ip4_via_ip4_tunnel.remove_vpp_config()
self.ip6_via_ip4_tunnel.remove_vpp_config()
self.ipip4.remove_vpp_config()
#
# enable ipip6
#
self.ipip6.add_vpp_config()
self.vapi.feature_gso_enable_disable(self.ipip6.sw_if_index,
enable_disable=1)
# Set interface up and enable IP on it
self.ipip6.admin_up()
self.ipip6.set_unnumbered(self.pg0.sw_if_index)
# Add IPv4 routes via tunnel interface
self.ip4_via_ip6_tunnel = VppIpRoute(self, "172.16.10.0", 24, [
VppRoutePath("0.0.0.0",
self.ipip6.sw_if_index,
proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)
])
self.ip4_via_ip6_tunnel.add_vpp_config()
# IPSec config
self.ipv6_params = IPsecIPv6Params()
self.encryption_type = ESP
config_tun_params(self.ipv6_params, self.encryption_type, self.ipip6)
self.tun_sa_in_v6 = VppIpsecSA(
self, self.ipv6_params.vpp_tun_sa_id, self.ipv6_params.vpp_tun_spi,
self.ipv6_params.auth_algo_vpp_id, self.ipv6_params.auth_key,
self.ipv6_params.crypt_algo_vpp_id, self.ipv6_params.crypt_key,
VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP)
self.tun_sa_in_v6.add_vpp_config()
self.tun_sa_out_v6 = VppIpsecSA(
self, self.ipv6_params.scapy_tun_sa_id,
self.ipv6_params.scapy_tun_spi, self.ipv6_params.auth_algo_vpp_id,
self.ipv6_params.auth_key, self.ipv6_params.crypt_algo_vpp_id,
self.ipv6_params.crypt_key,
VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP)
self.tun_sa_out_v6.add_vpp_config()
self.tun_protect_v6 = VppIpsecTunProtect(self, self.ipip6,
self.tun_sa_out_v6,
[self.tun_sa_in_v6])
self.tun_protect_v6.add_vpp_config()
#
# IPv6/IPv4 - IPSEC
#
ipsec64 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [ipsec64], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assertEqual(ipv6nh[rx[IPv6].nh], "ESP Header")
self.assertEqual(rx[ESP].spi, self.ipv6_params.scapy_tun_spi)
inner = self.ipv6_params.vpp_tun_sa.decrypt(rx[IPv6])
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.10.3")
size += inner[IP].len - 20 - 20
self.assertEqual(size, 65200)
self.ip6_via_ip6_tunnel = VppIpRoute(self, "fd01:10::", 64, [
VppRoutePath("::",
self.ipip6.sw_if_index,
proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)
])
self.ip6_via_ip6_tunnel.add_vpp_config()
#
# IPv6/IPv6 - IPSEC
#
ipsec66 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") /
TCP(sport=1234, dport=1234) / Raw(b'\xa5' * 65200))
rxs = self.send_and_expect(self.pg2, [ipsec66], self.pg0, 45)
size = 0
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg0.local_mac)
self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
self.assertEqual(ipv6nh[rx[IPv6].nh], "ESP Header")
self.assertEqual(rx[ESP].spi, self.ipv6_params.scapy_tun_spi)
inner = self.ipv6_params.vpp_tun_sa.decrypt(rx[IPv6])
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:10::3")
size += inner[IPv6].plen - 20
self.assertEqual(size, 65200)
# disable IPSec
self.tun_protect_v6.remove_vpp_config()
self.tun_sa_in_v6.remove_vpp_config()
self.tun_sa_out_v6.remove_vpp_config()
#
# disable ipip6
#
self.ip4_via_ip6_tunnel.remove_vpp_config()
self.ip6_via_ip6_tunnel.remove_vpp_config()
self.ipip6.remove_vpp_config()
self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
enable_disable=0)
