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-rw-r--r--test/test_lb.py71
1 files changed, 70 insertions, 1 deletions
diff --git a/test/test_lb.py b/test/test_lb.py
index 731790bce72..79a95988671 100644
--- a/test/test_lb.py
+++ b/test/test_lb.py
@@ -16,6 +16,8 @@ from util import ppp
- IP6 to GRE4 encap
- IP6 to GRE6 encap
- IP4 to L3DSR encap
+ - IP4 to NAT4 encap
+ - IP6 to NAT6 encap
As stated in comments below, GRE has issues with IPv6.
All test cases involving IPv6 are executed, but
@@ -135,7 +137,7 @@ class TestLB(VppTestCase):
# self.assertEqual(len(ip.options), 0)
gre = GRE(str(p[IPv6].payload))
self.checkInner(gre, isv4)
- if (encap == 'l3dsr'):
+ elif (encap == 'l3dsr'):
ip = p[IP]
asid = int(ip.dst.split(".")[3])
self.assertEqual(ip.version, 4)
@@ -143,6 +145,33 @@ class TestLB(VppTestCase):
self.assertEqual(ip.dst, "10.0.0.%u" % asid)
self.assertEqual(ip.tos, 0x1c)
self.assertEqual(len(ip.options), 0)
+ elif (encap == 'nat4'):
+ ip = p[IP]
+ asid = int(ip.dst.split(".")[3])
+ self.assertEqual(ip.version, 4)
+ self.assertEqual(ip.flags, 0)
+ self.assertEqual(ip.dst, "10.0.0.%u" % asid)
+ self.assertEqual(ip.proto, 17)
+ self.assertEqual(len(ip.options), 0)
+ self.assertGreaterEqual(ip.ttl, 63)
+ udp = p[UDP]
+ self.assertEqual(udp.dport, 3307)
+ elif (encap == 'nat6'):
+ ip = p[IPv6]
+ asid = ip.dst.split(":")
+ asid = asid[len(asid) - 1]
+ asid = 0 if asid == "" else int(asid)
+ self.assertEqual(ip.version, 6)
+ self.assertEqual(ip.tc, 0)
+ self.assertEqual(ip.fl, 0)
+ self.assertEqual(
+ socket.inet_pton(socket.AF_INET6, ip.dst),
+ socket.inet_pton(socket.AF_INET6, "2002::%u" % asid)
+ )
+ self.assertEqual(ip.nh, 17)
+ self.assertGreaterEqual(ip.hlim, 63)
+ udp = UDP(str(p[IPv6].payload))
+ self.assertEqual(udp.dport, 3307)
load[asid] += 1
except:
self.logger.error(ppp("Unexpected or invalid packet:", p))
@@ -246,3 +275,43 @@ class TestLB(VppTestCase):
self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u del" % (asid))
self.vapi.cli("lb vip 90.0.0.0/8 encap l3dsr dscp 7 del")
self.vapi.cli("test lb flowtable flush")
+
+ def test_lb_ip4_nat4(self):
+ """ Load Balancer IP4 NAT4 """
+ try:
+ self.vapi.cli("lb vip 90.0.0.0/8 encap nat4"
+ " type clusterip port 3306 target_port 3307")
+ for asid in self.ass:
+ self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u" % (asid))
+
+ self.pg0.add_stream(self.generatePackets(self.pg0, isv4=True))
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.checkCapture(encap='nat4', isv4=True)
+
+ finally:
+ for asid in self.ass:
+ self.vapi.cli("lb as 90.0.0.0/8 10.0.0.%u del" % (asid))
+ self.vapi.cli("lb vip 90.0.0.0/8 encap nat4"
+ " type clusterip port 3306 target_port 3307 del")
+ self.vapi.cli("test lb flowtable flush")
+
+ def test_lb_ip6_nat6(self):
+ """ Load Balancer IP6 NAT6 """
+ try:
+ self.vapi.cli("lb vip 2001::/16 encap nat6"
+ " type clusterip port 3306 target_port 3307")
+ for asid in self.ass:
+ self.vapi.cli("lb as 2001::/16 2002::%u" % (asid))
+
+ self.pg0.add_stream(self.generatePackets(self.pg0, isv4=False))
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.checkCapture(encap='nat6', isv4=False)
+
+ finally:
+ for asid in self.ass:
+ self.vapi.cli("lb as 2001::/16 2002::%u del" % (asid))
+ self.vapi.cli("lb vip 2001::/16 encap nat6"
+ " type clusterip port 3306 target_port 3307 del")
+ self.vapi.cli("test lb flowtable flush")