My internet T1 terminates at the internal csu of my 3725 router. I have a firewall/vpn concentrator (not Cisco) between the router and my LAN. I have several branch office VPN tunnels terminating at the vpn concentrator. Each branch office has a static IP. I want to limit each VPN tunnel a certain amount of bandwidth. Can I use QOS or some type of traffic shaping on the Cisco router to accomplish this?