Справочник Пользователя для ASUS RT-AC51U

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The wireless router can serve as a hardware firewall for your 

network. 

NOTE:  The Firewall feature is enabled by default.

To set up basic Firewall settings:
1.  From the navigation panel, go to Advanced Settings > 

Firewall > General tab.

2.  On the Enable Firewall field, select Yes.
3.  On the Enable DoS protection, select Yes to protect your 

network from DoS (Denial of Service) attacks though this may 

affect your router’s performance. 

4.  You can also monitor packets exchanged between the LAN 

and WAN connection. On the Logged packets type, select 

Dropped, Accepted, or Both.

5. Click Apply.

You can specify keywords or web addresses to prevent access to 

specific URLs.

NOTE:  The URL Filter is based on a DNS query. If a network client has 

already accessed a website such as http://www.abcxxx.com, then the 

website will not be blocked (a DNS cache in the system stores previously 

visited websites). To resolve this issue, clear the DNS cache before 

setting up the URL Filter.