Comment 18 for bug 1012144

I ran into this issue again on a single-host VlanManager environment.

I saw the same behavior as Lorin: running tcpdump on the bridge caused everything to work. I believe tcpdump is placing the interface in promiscuous mode, so I tried that outside of tcpdump:

ifconfig brXXX promisc

And sure enough, floating IP traffic began working.

I also tried the iptables rules as suggested from James, but that didn't have any effect. I wonder if James' environment was multi-host?

Finally, I see that there was a suggestion to try the NoopFirewallDriver years ago. I apologize, but I never saw those comments.