Comment 17 for bug 1735724

I was trying to reproduce that issue today and I couldn't.
Looking at the code it seems for me that after Brian's change [1] those rules are now added to the iptables_manager during creation of the router_info instance. So it's way before ri.process() is really called. If there will be any issue in that constuctor, there will be even no namespace created at all for the router.

[1] https://review.openstack.org/524406