+ def test_arp_vrrp(self):
+ """ ARP reply with VRRP virtual src hw addr """
+
+ #
+ # IP packet destined for pg1 remote host arrives on pg0 resulting
+ # in an ARP request for the address of the remote host on pg1
+ #
+ p0 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+
+ self.pg0.add_stream(p0)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx1 = self.pg1.get_capture(1)
+
+ self.verify_arp_req(rx1[0],
+ self.pg1.local_mac,
+ self.pg1.local_ip4,
+ self.pg1.remote_ip4)
+
+ #
+ # ARP reply for address of pg1 remote host arrives on pg1 with
+ # the hw src addr set to a value in the VRRP IPv4 range of
+ # MAC addresses
+ #
+ p1 = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
+ ARP(op="is-at", hwdst=self.pg1.local_mac,
+ hwsrc="00:00:5e:00:01:09", pdst=self.pg1.local_ip4,
+ psrc=self.pg1.remote_ip4))
+
+ self.pg1.add_stream(p1)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ #
+ # IP packet destined for pg1 remote host arrives on pg0 again.
+ # VPP should have an ARP entry for that address now and the packet
+ # should be sent out pg1.
+ #
+ self.pg0.add_stream(p0)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx1 = self.pg1.get_capture(1)
+
+ self.verify_ip(rx1[0],
+ self.pg1.local_mac,
+ "00:00:5e:00:01:09",
+ self.pg0.remote_ip4,
+ self.pg1.remote_ip4)
+
+ self.pg1.admin_down()
+ self.pg1.admin_up()
+
+ def test_arp_duplicates(self):
+ """ ARP Duplicates"""
+
+ #
+ # Generate some hosts on the LAN
+ #
+ self.pg1.generate_remote_hosts(3)
+
+ #
+ # Add host 1 on pg1 and pg2
+ #
+ arp_pg1 = VppNeighbor(self,
+ self.pg1.sw_if_index,
+ self.pg1.remote_hosts[1].mac,
+ self.pg1.remote_hosts[1].ip4)
+ arp_pg1.add_vpp_config()
+ arp_pg2 = VppNeighbor(self,
+ self.pg2.sw_if_index,
+ self.pg2.remote_mac,
+ self.pg1.remote_hosts[1].ip4)
+ arp_pg2.add_vpp_config()
+
+ #
+ # IP packet destined for pg1 remote host arrives on pg1 again.
+ #
+ p = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_hosts[1].ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx1 = self.pg1.get_capture(1)
+
+ self.verify_ip(rx1[0],
+ self.pg1.local_mac,
+ self.pg1.remote_hosts[1].mac,
+ self.pg0.remote_ip4,
+ self.pg1.remote_hosts[1].ip4)
+
+ #
+ # remove the duplicate on pg1
+ # packet stream shoud generate ARPs out of pg1
+ #
+ arp_pg1.remove_vpp_config()
+
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx1 = self.pg1.get_capture(1)
+
+ self.verify_arp_req(rx1[0],
+ self.pg1.local_mac,
+ self.pg1.local_ip4,
+ self.pg1.remote_hosts[1].ip4)
+
+ #
+ # Add it back
+ #
+ arp_pg1.add_vpp_config()
+
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx1 = self.pg1.get_capture(1)
+
+ self.verify_ip(rx1[0],
+ self.pg1.local_mac,
+ self.pg1.remote_hosts[1].mac,
+ self.pg0.remote_ip4,
+ self.pg1.remote_hosts[1].ip4)
+
+ def test_arp_static(self):
+ """ ARP Static"""
+ self.pg2.generate_remote_hosts(3)
+
+ #
+ # Add a static ARP entry
+ #
+ static_arp = VppNeighbor(self,
+ self.pg2.sw_if_index,
+ self.pg2.remote_hosts[1].mac,
+ self.pg2.remote_hosts[1].ip4,
+ is_static=1)
+ static_arp.add_vpp_config()
+
+ #
+ # Add the connected prefix to the interface
+ #
+ self.pg2.config_ip4()
+
+ #
+ # We should now find the adj-fib
+ #
+ self.assertTrue(find_nbr(self,
+ self.pg2.sw_if_index,
+ self.pg2.remote_hosts[1].ip4,
+ is_static=1))
+ self.assertTrue(find_route(self,
+ self.pg2.remote_hosts[1].ip4,
+ 32))
+
+ #
+ # remove the connected
+ #
+ self.pg2.unconfig_ip4()
+
+ #
+ # put the interface into table 1
+ #
+ self.pg2.set_table_ip4(1)
+
+ #
+ # configure the same connected and expect to find the
+ # adj fib in the new table
+ #
+ self.pg2.config_ip4()
+ self.assertTrue(find_route(self,
+ self.pg2.remote_hosts[1].ip4,
+ 32,
+ table_id=1))
+
+ #
+ # clean-up
+ #
+ self.pg2.unconfig_ip4()
+ self.pg2.set_table_ip4(0)
+
+