Denwa Communications DW-310P, Руководство пользователя

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Set initial IP address in the Start IP column, Set end IP address in the End IP
column, and click Add to add this IP segment. You can also click Delete to
delete the selected IP segment.
Web Filter setting
Select it or not to enable or disable Web Filter. Click
Apply to make it effective.
Notice: Do not set your visiting IP outside the Web filter range, otherwise,
you cannot logon through the web.
8.3.7.2
FIREWALL
Firewall Configuration
In this web interface, you can set up firewall to prevent unauthorized
Internet users from accessing private networks connected to the Internet
(input rule), or prevent unauthorized private network devices from
accessing the Internet (output rule).
Firewall supports two types of rules: input access rule and output access
rule. Each type supports at most 10 items.
Through this web page, you could set up and enable/disable firewall with
input/output rules. System could prevent unauthorized access, or access
other networks set in rules for security. Firewall, is also called access list,
is a simple implementation of a Cisco-like access list (firewall). It supports