You wouldn't (and likely shouldn't) connect the hub. Just connect the other Ethernet devices directly to the other open ports on the router.
Edit: Looked into it a little bit more. Newer Ethernet hubs are essentially a switch. In other words, a router without DHCP addressing, which is what you would want. So you can do it either way. If you have three or less wired devices to connect, just plug them in directly to the router. If you have more than that, then leave them plugged into the hub, and then one of the open ports of the hub gets connected to a port on the router. Since the hub has no means to assign DHCP IP addresses, the router will do that automatically.
I was just slightly worried the hub may also assign DHCP IP addresses. If that were the case, you definitely would not be able to connect it to the router, or both devices would be trying to assign IP addresses to every connected device.