Before You Begin; The Vpn Connection Screen - ZyXEL Communications ZYWALL USG 20 Manual

Chapter 23 IPSec VPN
• See Section 23.4 on page 415
• See Section 5.4 on page 76
• See Section 7.4 on page 116

23.1.3 Before You Begin

This section briefly explains the relationship between VPN tunnels and other
features. It also gives some basic suggestions for troubleshooting.
You should set up the following features before you set up the VPN tunnel.
• In any VPN connection, you have to select address objects to specify the local
policy and remote policy. You should set up the address objects first.
• In a VPN gateway, you can select an Ethernet interface, virtual Ethernet
interface, VLAN interface, or virtual VLAN interface to specify what address the
ZyWALL uses as its IP address when it establishes the IKE SA. You should set up
the interface first. See
• In a VPN gateway, you can enable extended authentication. If the ZyWALL is in
server mode, you should set up the authentication method (AAA server) first.
The authentication method specifies how the ZyWALL authenticates the remote
IPSec router. See
• In a VPN gateway, the ZyWALL and remote IPSec router can use certificates to
authenticate each other. Make sure the ZyWALL and the remote IPSec router
will trust each other's certificates. See

23.2 The VPN Connection Screen

Click Configuration > VPN > IPSec VPN to open the VPN Connection screen.
The VPN Connection screen lists the VPN connection policies and their
associated VPN gateway(s), and various settings. In addition, it also lets you
activate / deactivate and connect / disconnect each VPN connection (each IPSec
394
for IPSec VPN background information.
for the IPSec VPN quick setup wizard.
for an example of configuring IPSec VPN.
Chapter 11 on page
Chapter 37 on page 573.
Chapter 39 on page
217.
589.
ZyWALL USG 20/20W User's Guide