Configuring A Customized Service; The Firewall Threshold Screen; Figure 59 Security > Firewall > Rules: Edit: Edit Customized Services: Config; Table 36 Security > Firewall > Rules: Edit: Edit Customized Services: Config - ZyXEL Communications P-793H User Manual

9.3.3 Configuring a Customized Service

Use this screen to add a customized rule or edit an existing rule. Click a rule
number in the Firewall Customized Services screen to display the following
screen.
Figure 59 Security > Firewall > Rules: Edit: Edit Customized Services: Config
The following table describes the labels in this screen.
Table 36 Security > Firewall > Rules: Edit: Edit Customized Services: Config
LABEL
Config
Service
Name
Service Type
Port Configuration
Type
Port Number
Back
Apply
Cancel
Delete

9.4 The Firewall Threshold Screen

For DoS attacks, the P-793H v2 uses thresholds to determine when to start
dropping sessions that do not become fully established (half-open sessions).
These thresholds apply globally to all sessions.
For TCP, half-open means that the session has not reached the established state-
the TCP three-way handshake has not yet been completed. Under normal
P-793H v2 User's Guide
DESCRIPTION
Type a unique name for your custom port.
Choose the IP port (TCP, UDP or TCP/UDP) that defines your customized
port from the drop down list box.
Click Single to specify one port only or Range to specify a span of ports
that define your customized service.
Type a single port number or the range of port numbers that define your
customized service.
Click this to return to the previous screen without saving.
Click this to save your changes.
Click this to restore your previously saved settings.
Click this to delete the current rule.
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