self.logger.error(ppp("Unexpected or invalid packet:", p))
raise
- # multiple clients
+ @unittest.skipUnless(running_extended_tests(), "part of extended tests")
+ def test_static_lb_multi_clients(self):
+ """ NAT44 local service load balancing - multiple clients"""
+
+ external_addr_n = socket.inet_pton(socket.AF_INET, self.nat_addr)
+ external_port = 80
+ local_port = 8080
+ server1 = self.pg0.remote_hosts[0]
+ server2 = self.pg0.remote_hosts[1]
+
+ locals = [{'addr': server1.ip4n,
+ 'port': local_port,
+ 'probability': 90},
+ {'addr': server2.ip4n,
+ 'port': local_port,
+ 'probability': 10}]
+
+ self.nat44_add_address(self.nat_addr)
+ self.vapi.nat44_add_del_lb_static_mapping(external_addr_n,
+ external_port,
+ IP_PROTOS.tcp,
+ local_num=len(locals),
+ locals=locals)
+ 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)
+
server1_n = 0
server2_n = 0
- clients = ip4_range(self.pg1.remote_ip4, 10, 20)
+ clients = ip4_range(self.pg1.remote_ip4, 10, 50)
pkts = []
for client in clients:
p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) /
raise
# from local network host to external network
- ext_port = 0
- p = (Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) /
- IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
- TCP(sport=23456, dport=34567))
- self.pg0.add_stream(p)
+ 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(1)
- p = capture[0]
- try:
- ip = p[IP]
- tcp = p[TCP]
- self.assertEqual(ip.src, self.nat_addr)
- self.assertNotEqual(tcp.sport, 23456)
- ext_port = tcp.sport
- self.check_tcp_checksum(p)
- self.check_ip_checksum(p)
- except:
- self.logger.error(ppp("Unexpected or invalid packet:", p))
- raise
+ capture = self.pg1.get_capture(len(pkts))
+ self.verify_capture_out(capture)
+ 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)
# from external network back to local network host
- p = (Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) /
- IP(src=self.pg1.remote_ip4, dst=self.nat_addr) /
- TCP(sport=34567, dport=ext_port))
- self.pg1.add_stream(p)
+ pkts = self.create_stream_out(self.pg1)
+ self.pg1.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- capture = self.pg0.get_capture(1)
- p = capture[0]
- server = None
- try:
- ip = p[IP]
- tcp = p[TCP]
- self.assertEqual(ip.dst, self.pg0.remote_ip4)
- self.assertEqual(tcp.dport, 23456)
- self.check_tcp_checksum(p)
- self.check_ip_checksum(p)
- except:
- self.logger.error(ppp("Unexpected or invalid packet:", p))
- raise
+ capture = self.pg0.get_capture(len(pkts))
+ self.verify_capture_in(capture, self.pg0)
def test_output_feature_and_service2(self):
""" NAT44 interface output feature and service host direct access """