G、Firewall - D-Link DSA-3100 User Manual

DSA-3100 Wireless Service Gateway User Manual
g 、 Firewall
Click the Filter Rule index button to enter the firewall Page for each filter. The following
explains each configurable item in detail.
Figure 2-7 Defining Filter Rule
a.) Name:
Enter filter set name/description. Maximum length is 15 characters.
b.) Check to enable this Rule:
Enables the filter rule.
c.) Action:
Specifies the action to be taken when packets match the rule.
Block：Packets matching the rule will be dropped immediately.
Pass：Packets matching the rule will be passed immediately.
d.) Protocol:
Specifies the protocol(s) this filter rule will apply to.
e.) IP Address:
Specifies a source and destination IP address for this filter rule to apply to. Placing the
symbol！before a particular IP Address will prevent this rule from being applied to that IP
address. It is equal to the logical NOT operator.
f.) Subnet Mask:
Specifies the Subnet Mask for the IP Address column for this filter rule to apply to.
g.) Operator:
The operator column specifies the port number setting. If the Start Port is empty, the Start Port
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