Reference Manual for the ProSafe VPN Firewall FVS318v3
5-2 Basic Virtual Private Networking
January 2005

Overview of VPN Configuration

Two common scenarios for configuring VPN tunnels are between a remote personal computer and
a network gateway and between two or more network gateways. The FVS318v3 supports both of
these types of VPN configurations. The FVS318v3 VPN Firewall supports up to eight concurrent
tunnels.

Client-to-Gateway VPN Tunnels

Client-to-gateway VPN tunnels provide secure access from a remote PC, such as a telecommuter
connecting to an office network (see Figure 5-1).
Figure 5-1: Client-to-ga teway VPN tunnel
A VPN client access allows a remote PC to connect to your network from any location on the
Internet. In this case, the remote PC is one tunnel endpoint, running the VPN client software. The
FVS318v3 VPN Firewall on your network is the other tunnel endpoint. See “How to Set Up a
Client-to-Gateway VPN Configuration” on page 5-5 to set up this configuration.

Gateway-to-Gateway VPN Tunnels

Gateway-to-gateway VPN tunnels provide secure access between networks, such as a branch
or home office and a main office (see Figure 5-2).
192.168.3.1
VPN Tunnel

FVS318

24.0.0.1
PCs