1 service access limitations, 2 system timeout – ZyXEL Communications 200 Series User Manual
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Chapter 43 System
ZyWALL USG 100/200 Series User’s Guide
677
Figure 495 Secure and Insecure Service Access From the WAN
• See
for related information on these screens.
"
To allow the ZyWALL to be accessed from a specified computer using a
service, make sure you do not have a service control rule or to-ZyWALL
firewall rule to block that traffic.
• See
for more on To-ZyWALL firewall rules.
• See
for an example of configuring service control to block
administrator HTTPS access from all zones except LAN1.
To stop a service from accessing the ZyWALL, clear Enable in the corresponding service
screen.
43.6.1 Service Access Limitations
A service cannot be used to access the ZyWALL when:
1 You have disabled that service in the corresponding screen.
2 The allowed IP address (address object) in the Service Control table does not match the
client IP address (the ZyWALL disallows the session).
3 The IP address (address object) in the Service Control table is not in the allowed zone or
the action is set to Deny.
4 There is a firewall rule that blocks it.
43.6.2 System Timeout
There is a lease timeout for administrators. The ZyWALL automatically logs you out if the
management session remains idle for longer than this timeout period. The management session
does not time out when a statistics screen is polling.
Each user is also forced to log in the ZyWALL for authentication again when the
reauthentication time expires.
You can change the timeout settings in the User/Group screens.