Comment 2 for bug 1557290

Ryan Tidwell (ryan-tidwell) wrote :

Traffic can be directed at the FIP agent gateway when upstream routers either have static routes for each fixed IP or if upstream routers learn the host route via a routing protocol like BGP. I encountered this issue while doing some development on Neutron BGP. I had written some code that announces a host route for each fixed IP using the FIP gateway as the next-hop. I did not include this code in Mitaka because it was late enough in the cycle that this was not going to get fixed. Leaving that code in Mitaka would effectively push routes into the infrastructure that would cause traffic to black-hole and I was concerned that it would look like buggy. If we can get this fixed it's not a heavy lift to get north-south DVR working with both IPv4 and IPv6.