I just replaced my home Linksys BEFW11S4 router with a PIX 501. All is working but my connectivity to my company's Nortel VPN using the Contivity 4_65 client fails to connect. The Nortel client worked with the Linksys router and the only change is the PIX. I have looked over the documentation but haven;t been able to distill the info. I need to either configure a pass-through tunnel or setup the PIX VPN client (wizard) to connect to the Contivity host. Any help would be greatly appreciated.