Learning OpenStack Networking - Third Edition

Returning traffic to the floating IP

If you recall from earlier in this chapter, a single fip namespace on a compute node is shared by every qrouter namespace on that node connected to the external network. Much like a standalone or highly-available router has an IP address from the external network on its qg interface, each fip namespace has a single IP address from the external network configured on its fg interface.

On compute03, the IP address is 10.30.0.113:

Unlike a legacy router, the qrouter namespaces of distributed routers do not have direct connectivity to the external network. However, the qrouter namespace is still responsible ...