Comment 3 for bug 1889779

Reviewed: https://review.opendev.org/744500
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=31a95c085fc1a5ce8a57ff834386b022ae087e24
Submitter: Zuul
Branch: master

commit 31a95c085fc1a5ce8a57ff834386b022ae087e24
Author: Slawek Kaplonski <email address hidden>
Date: Mon Aug 3 16:58:05 2020 +0200

    Use ebtables-legacy on Ubuntu Focal

    On Ubuntu 20.04 there is by default ebtables-nft used. The problem with
    that is that nftables don't supports syntax for source and destination
    ipv4 address in arp tables right now.
    So to workaround/fix this problem at least in our gate jobs we have to
    switch to ebtables-legacy for now.
    And that's exactly what this patch is doing.

    Change-Id: I0aca119f1feca1d8f31a0104dde40d5d52c1b25c
    Closes-Bug: #1889779