os-vif/releasenotes/notes/prevent-lb-reply-arp-6459133bfb056069.yaml
Rodolfo Alonso Hernandez 9ad9b84839 Prevent "qbr" Linux Bridge from replying to ARP messages
The Linux Bridge in between the VM TAP interface and OVS should [1][2]:
- Reply only if the target IP address is local address configured
  on the incoming interface.
- Always use the best local address.

[1]http://kb.linuxvirtualserver.org/wiki/Using_arp_announce/arp_ignore_to_disable_ARP
[2]http://linux-ip.net/html/ether-arp.html#ether-arp-flux

Change-Id: I8721b680bbd9f59a67bd8e6855ffb291c208cdb8
Closes-Bug: #1825888
2019-04-26 09:19:55 +00:00

9 lines
350 B
YAML

---
security:
- |
Prevent Linux Bridge from replying to ARP messages. It should reply only if
the target IP address is a local address configured on the incoming
interface and it should always use the best local address. See `The ARP
flux problem <http://linux-ip.net/html/ether-arp.html#ether-arp-flux>`_ for
more information.