Comment 29 for bug 2031087

Okay, figured out what was going wrong. Even though I had installed OVN into /opt/ovn, and started it using "/opt/ovn/share/ovn/scripts/ovn-ctl start_{controller,northd}", the ovn-ctl script went on to starting the OVN binaries installed to /usr/bin instead for some dumb reason. After moving the /usr/bin binaries out of the way, ovn-ctl started the right binaries from /opt/ovn instead.

That made me able to confirm that the patch works as expected. With it, the nw_ttl=225 flows are replaced with nw_ttl=255 ones, and IPv6 neighbour discovery between the VMs works again. Great job!

By the way, I think this patch should be cherry-picked onto the stable branches that contain 8cab00bdb581 ("ovn-controller: Add OF rules for port security.").