Service Access Limitations; System Timeout; Figure 495 Secure And Insecure Service Access From The Wan - ZyXEL Communications 200 Series User Manual

Figure 495 Secure and Insecure Service Access From the WAN

• See Section 5.6.1 on page 122
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 To-ZyWALL Rules on page 337
• See Section 6.7 on page 156
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.
ZyWALL USG 100/200 Series User's Guide
for related information on these screens.
for more on To-ZyWALL firewall rules.
for an example of configuring service control to block
Chapter 43 System
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