diff options
Diffstat (limited to 'test/test_neighbor.py')
| -rw-r--r-- | test/test_neighbor.py | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/test/test_neighbor.py b/test/test_neighbor.py index 47e9c5bed76..7798fdd5e7c 100644 --- a/test/test_neighbor.py +++ b/test/test_neighbor.py @@ -1144,6 +1144,76 @@ class ARPTestCase(VppTestCase): self.pg2.unconfig_ip4() self.pg2.set_table_ip4(0) + def test_arp_incomplete(self): + """ ARP Incomplete""" + self.pg1.generate_remote_hosts(3) + + p0 = (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()) + p1 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) / + IP(src=self.pg0.remote_ip4, + dst=self.pg1.remote_hosts[2].ip4) / + UDP(sport=1234, dport=1234) / + Raw()) + + # + # a packet to an unresolved destination generates an ARP request + # + rx = self.send_and_expect(self.pg0, [p0], self.pg1) + self.verify_arp_req(rx[0], + self.pg1.local_mac, + self.pg1.local_ip4, + self.pg1._remote_hosts[1].ip4) + + # + # add a neighbour for remote host 1 + # + static_arp = VppNeighbor(self, + self.pg1.sw_if_index, + self.pg1.remote_hosts[1].mac, + self.pg1.remote_hosts[1].ip4, + is_static=1) + static_arp.add_vpp_config() + + # + # change the interface's MAC + # + mac = [chr(0x00), chr(0x00), chr(0x00), + chr(0x33), chr(0x33), chr(0x33)] + mac_string = ''.join(mac) + + self.vapi.sw_interface_set_mac_address(self.pg1.sw_if_index, + mac_string) + + # + # now ARP requests come from the new source mac + # + rx = self.send_and_expect(self.pg0, [p1], self.pg1) + self.verify_arp_req(rx[0], + "00:00:00:33:33:33", + self.pg1.local_ip4, + self.pg1._remote_hosts[2].ip4) + + # + # packets to the resolved host also have the new source mac + # + rx = self.send_and_expect(self.pg0, [p0], self.pg1) + self.verify_ip(rx[0], + "00:00:00:33:33:33", + self.pg1.remote_hosts[1].mac, + self.pg0.remote_ip4, + self.pg1.remote_hosts[1].ip4) + + # + # set the mac address on the inteface that does not have a + # configured subnet and thus no glean + # + self.vapi.sw_interface_set_mac_address(self.pg2.sw_if_index, + mac_string) + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner) |