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11.31 Security >> Firewall
Figure 30 - Network Firewall Settings
On this page you can enable the input and output firewall, set the firewall input and output
rules to prevent some malicious network access and/or restrict internal users
’ access to
some external network resources, thus enhancing security.
The firewall rule set is a simple firewall module. This feature supports two types of rules:
input rules and output rules. Each rule is assigned an ordinal number, allowing for up to 10
for each rule.
Considering the complexity of firewall settings, the following is an example to illustrate:
Table 17 - Network Firewall
Parameter
Description
Enable Input Rules
Indicates that the input rule application is enabled.
Enable Output Rules
Indicates that the output rule application is enabled.
Input/Output
Select whether the currently added rule is an input or
output rule.
Deny/Permit
Select whether the current rule configuration is disabled or
allowed.
Protocol
There are four types of filtering protocols: TCP | UDP |
ICMP | IP.
Src Port Range
Filter port range
