diff options
Diffstat (limited to 'test/test_neighbor.py')
| -rw-r--r-- | test/test_neighbor.py | 106 |
1 files changed, 103 insertions, 3 deletions
diff --git a/test/test_neighbor.py b/test/test_neighbor.py index 24737da0eca..041d78245a5 100644 --- a/test/test_neighbor.py +++ b/test/test_neighbor.py @@ -16,8 +16,9 @@ from vpp_ip_route import ( FibPathType, VppIpInterfaceAddress, ) -from vpp_papi import VppEnum +from vpp_papi import VppEnum, MACAddress from vpp_ip import VppIpPuntRedirect +from vpp_sub_interface import VppDot1ADSubint import scapy.compat from scapy.packet import Raw @@ -86,11 +87,11 @@ class ARPTestCase(VppTestCase): super(ARPTestCase, self).tearDown() - def verify_arp_req(self, rx, smac, sip, dip): + def verify_arp_req(self, rx, smac, sip, dip, etype=0x0806): ether = rx[Ether] self.assertEqual(ether.dst, "ff:ff:ff:ff:ff:ff") self.assertEqual(ether.src, smac) - self.assertEqual(ether.type, 0x0806) + self.assertEqual(ether.type, etype) arp = rx[ARP] self.assertEqual(arp.hwtype, 1) @@ -845,6 +846,105 @@ class ARPTestCase(VppTestCase): self.pg2.admin_down() self.pg1.admin_down() + def test_arp_after_mac_change(self): + """ARP (after MAC address change)""" + + # + # Prepare a subinterface + # + subif0 = VppDot1ADSubint(self, self.pg1, 0, 300, 400) + subif0.admin_up() + subif0.config_ip4() + + # + # Send a packet to cause ARP generation for the parent interface's remote host + # + p1 = ( + 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(p1) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(1) + + self.verify_arp_req( + rx[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1.remote_ip4 + ) + + # + # Send a packet to cause ARP generation for the subinterface's remote host + # + p2 = ( + Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) + / IP(src=self.pg0.remote_ip4, dst=subif0.remote_ip4) + / UDP(sport=1234, dport=1234) + / Raw() + ) + + self.pg0.add_stream(p2) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(1) + + self.verify_arp_req( + rx[0], + self.pg1.local_mac, + subif0.local_ip4, + subif0.remote_ip4, + subif0.DOT1AD_TYPE, + ) + + # + # Change MAC address of the parent interface + # + pg1_mac_saved = self.pg1.local_mac + self.pg1.set_mac(MACAddress("00:00:00:11:22:33")) + + # + # Send a packet to cause ARP generation for the parent interface's remote host + # - expect new MAC address is used as the source + # + self.pg0.add_stream(p1) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(1) + + self.verify_arp_req( + rx[0], self.pg1.local_mac, self.pg1.local_ip4, self.pg1.remote_ip4 + ) + + # + # Send a packet to cause ARP generation for the subinterface's remote host + # - expect new MAC address is used as the source + # + + self.pg0.add_stream(p2) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg1.get_capture(1) + + self.verify_arp_req( + rx[0], + self.pg1.local_mac, + subif0.local_ip4, + subif0.remote_ip4, + subif0.DOT1AD_TYPE, + ) + + # + # Cleanup + # + subif0.remove_vpp_config() + self.pg1.set_mac(MACAddress(pg1_mac_saved)) + def test_proxy_mirror_arp(self): """Interface Mirror Proxy ARP""" |