My favorite answer applies here. It depends.
If the uplink connection on the Router is X-over (likely), and the WAN connection on the hub is in fact an E-net connection, and is wired for straight through, then yes. If the WAN connection on hub is wired X-over, then you need to use a X-over cable. (crossed + crossed = straight. Then straight + crossed = crossed.)
That's the physical connection. Now, as to whether or not you will get additional IP's.
It also depends.
On how your ISP provides you with access. Do you you use IP Masquerading or NAT? Using private ip's on your LAN?
At my home, I get a static IP from my ISP, that is on my Router's Wan link. Router then functions as a DHCP server handing out private IP's to Hosts on LAN.
Hope this helps.