User's Manual

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Picture 128 - Network firewall Settings
Through this page can set whether to enable the input, output firewall, at the same time
can set the firewall input and output rules, using these Settings can prevent some
malicious network access, or restrict internal users access to some resources of the
external network, improve security.
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 up to 10 for each
rule.
Considering the complexity of firewall Settings, the following is an example to illustrate:
Table 33 - 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 To select whether the current
ly added rule is an input or
output rule.
Deny/Permit
To 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
Src Address
Sou
rce address can be host address, network address, or
all addresses 0.0.0.0; It can also be a network address
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