Currently, our remote users uses a Cisco VPN client to access our main office via DSL. The VPN sessions are terminated at Cisco PIX 515. Now, we are interested in LAN to LAN VPN. We want to VPN session to be up and running 24 hours. Is any device enable to accomplish this with PIX 515 termination point? if so, which device? Since each remote location has 1 user, we don't need to have a high scale device.