![background image](/i/zyxel/144895/zyxel-zywall-2-ee/h/zyxel-zywall-2-ee-239.png)
ZyWALL 2 Series User’s Guide
VPN Screens
14-33
Table 14-9 VPN Manual Setup
LABEL DESCRIPTION
Authentication
Key
Type a unique authentication key to be used by IPSec if applicable. Enter 16
characters for
MD5
authentication or 20 characters for
SHA-1
authentication. Any
characters may be used, including spaces, but trailing spaces are truncated.
Apply
Click
Apply
to save your changes back to the ZyWALL.
Cancel
Click
Cancel
to exit this screen without saving.
14.16 SA Monitor
In the web configurator, click
VPN
and the
SA Monitor
tab. Use this screen to display and manage your
active VPN connection.
A Security Association (SA) is the group of security settings related to a specific VPN tunnel. This screen
displays the active VPN connection. Use
Refresh
to display the active VPN connection. This screen is read-
only. The following table describes the fields in this tab.
When there is outbound traffic but no inbound traffic, the SA times out
automatically after two minutes. A tunnel with no outbound or inbound traffic is
"idle" and does not timeout until the SA lifetime period expires. See the section on
keep alive to have the ZyWALL renegotiate an IPSec SA when the SA lifetime
expires, even if there is no traffic.
Figure 14-11 VPN SA Monitor