Comment 19 for bug 1743480

> It is also possible to have a external=true network that isn't a floating IP network.

> We have a provider network that is external and users can attach a port from this network directly to their instance.
> They can't however use this network as a floating IP network.

I think there is some confusion on the usage of "router:external" and "shared" attributes.

- shared=True means users can attach a port from this network directly to their instance
- router:external=True means this network can be used as a floating IP network.

Looking at comment #11 (https://bugs.launchpad.net/neutron/+bug/1743480/comments/11), you set both shared=True and router:external=True for both networks.

In addition, if you have two network as floating IP pools and expose one of them to a specific set of users and the other of them to another set of users, you can use "access_as_external" of network RBAC feature.

I would like to clarify whether you have use cases more than above.