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network resource unavailable to its intended users.

Filtering @ Firewall

Item

Description

Default

Default Filter Policy



Accept: Router will reject all the connecting requests except the hosts which fit

the filter list.

Drop: Router will only accept the connecting requests from the hosts which fit

the filter list.

Add Filter List



Null

Action



Accept: Router will reject all the connecting requests except the hosts which fit

this filter rule.

Drop: Router will only accept the connecting requests from the hosts which fit

this filter rule.

Source IP

Defines if access is allowed from one or a range of IP addresses which are defined

by Source IP Address, or every IP addresses.

Null

Source Port

Defines if access is allowed from one or a range of port which is defined by

Source Port.

Null

Target IP Address

Defines if access is allowed to one or a range of IP addresses which are defined

by Target IP Address, or every IP addresses.

Null

Target Port

Defines if access is allowed tone or a range of port which is defined by Target

Port.

Null

Protocol







TCP

Note: You can use “-“to define a range of IP addresses or ports, e.g. 1.1.1.1-2.2.2.2, 10000-12000.

Note: the filtering settings should be divided into two parts. Part 1 is the Exact Filter List and Part 2 is the Default

Filter Policy. The priority of Exact Filter List is higher than Default Filter Policy. It means that while Router receive IP

packets from WAN side, it will check the Exact Filter List first, if the IP packets mismatch the Exact Filter List, then

Router will execute the Default Filter Policy.

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