VPN Client Group Window
A preshared key is a quick and easy way to set up communications with
a limited number of remote peers. To use this method of authentication,
exchange the preshared key with the remote access user through a
secure and convenient method, such as an encrypted e-mail message.
Step 4 Use the Client Authentication window, shown in Figure 15-30, to
require VPN client users to authenticate from a AAA server for access
to the private network on your PIX Firewall. Client authentication
through a AAA server is optional and is not required for VPN client
access to the private network.