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#!/usr/bin/env python3
import unittest
from scapy.layers.l2 import Ether
from scapy.layers.inet6 import IPv6
from framework import VppTestCase
class TestL2tp(VppTestCase):
""" L2TP Test Case """
@classmethod
def setUpClass(cls):
super(TestL2tp, cls).setUpClass()
cls.create_pg_interfaces(range(1))
cls.pg0.admin_up()
cls.pg0.config_ip6()
def test_l2tp_decap_local(self):
""" L2TP don't accept packets unless configured """
pkt = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=115))
self.pg0.add_stream(pkt)
self.pg_start()
# l2tp should not accept packets
err = self.statistics.get_counter(
'/err/l2tp-decap-local/l2tpv3 session not found')[0]
self.assertEqual(err, 0)
err_count = err
self.vapi.l2tpv3_create_tunnel(client_address=self.pg0.local_ip6,
our_address=self.pg0.remote_ip6)
self.pg0.add_stream(pkt)
self.pg_start()
# l2tp accepts packets
err = self.statistics.get_counter(
'/err/l2tp-decap-local/l2tpv3 session not found')[0]
self.assertEqual(err, 1)
err_count = err
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