DG-LB1054UV User Manual
59
3.2.1.1 Packet Filters
Packet Filters
include both outbound filter and inbound filter. And they have the same way
to setting. It enables you to control what packets are allowed to pass the router. Outbound
filter applies on all outbound packets. However, inbound filter applies on packets that are
destined to virtual servers or DMZ host only. You can select one of the two filtering policies:
1.
Allow all to pass except those that match the specified rules.
2.
Deny all to pass except those that match the specified rules.
1.
Packet Filters:
Check if you want to enable Packet Filter function.
2.
Black List / White List
: Select one of the two filtering policies for the defined rules.
Black List - Allow all to pass except those that match the specified rules.
White List - Deny all to pass except those that match the specified rules
3.
Log Alert:
Enable Log Alert will record events that are blocked by these rules.
4.
Source IP:
Specify the source IP range for the rule. You can define a single IP address
(4.3.2.1) or a range of IP addresses (4.3.2.20~30). An empty implies all IP addresses.
Rule Definition:
You can enter the
Source IP
,
destination IP / Port
,
Protocol
, and
Schedule
settings for
each packet filter rule, and then enable or disable the rule by checking or un-checking the
Enable checkbox.
5.
Destination IP / Destination Ports:
Specify the Destination IP and Port range for the
rule. You can define a single IP address (4.3.2.1) or a range of IP addresses (4.3.2.20~30).
An empty implies all IP addresses. For destination port, you can define a single port (80)
or a range of ports (1000-1999). An empty implies all port addresses.
6.
Protocol:
Specify which packet protocol is to be filtered. It can be TCP, UDP, or Both.
7.
Time Schedule:
The rule can be turned off according to the schedule rule you specified,
and give user more flexibility on access control. By default, it is always turned on when
the rule is enabled. For more details, please refer to the
System
->
Scheduling
menu.
