diff options
| author |   Pim van Pelt <pim@ipng.nl> | 2024-03-08 09:27:40 +0100 |
|---|---|---|
| committer |   Neale Ranns <neale@graphiant.com> | 2024-04-09 04:26:21 +0000 |
| commit | 2a7bc81ae302b02e8e0d4eec7db82c1ca15b7f7a (patch) | |
| tree | 46572a13e4be6271032862c1ab18e17e35515903 /test | |
| parent | 0bfce6b7243af63c74823c78a9c98377079efec7 (diff) | |
vnet: fix ARP for unnumbered
On unnumbered interfaces, ARP fails because there is no attached route.
Allow replies to peer-to-peer addresses on unnumbered interfaces:
eg. 192.0.2.1/32 <-> 192.0.2.2/32
Type: fix
Change-Id: Ibeb8d8ebc8d58d5bfb0724739a17694e0217356e
Signed-off-by: Pim van Pelt <pim@ipng.nl>
Diffstat (limited to 'test')
| -rw-r--r-- | test/test_neighbor.py | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/test/test_neighbor.py b/test/test_neighbor.py index 7338eff86d3..6fcf13f8261 100644 --- a/test/test_neighbor.py +++ b/test/test_neighbor.py @@ -432,14 +432,24 @@ class ARPTestCase(VppTestCase): self.assertEqual(unnum[0].ip_sw_if_index, self.pg1.sw_if_index) self.assertEqual(unnum[0].sw_if_index, self.pg2.sw_if_index) - # - # We should respond to ARP requests for the unnumbered to address - # once an attached route to the source is known - # - self.send_and_assert_no_replies( - self.pg2, p, "ARP req for unnumbered address - no source" + # Allow for ARP requests from point-to-point ethernet neighbors + # without an attached route on pg2 + self.pg2.add_stream(p) + self.pg_enable_capture(self.pg_interfaces) + self.pg_start() + + rx = self.pg2.get_capture(1) + self.verify_arp_resp( + rx[0], + self.pg2.local_mac, + self.pg2.remote_mac, + self.pg1.local_ip4, + self.pg2.remote_hosts[3].ip4, ) + # + # Allow for ARP requests from neighbors on unnumbered with + # an attached route on pg2 attached_host = VppIpRoute( self, self.pg2.remote_hosts[3].ip4, |