Q. Will Cisco VPN Client v4.0 coexists with another installed VPN client?

A. The Cisco VPN Client v4.0 has introduced some architectural changes that allow it to coexist better with other VPN clients on the system. System interoperability has been verified with the Microsoft Windows Layer 2 Tunneling Protocol (L2TP) IPsec VPN client and the Nortel VPN client. Other VPN clients may now coexist, but would not be formally supported by Cisco.