Asus RT-N12E C1 users manual in English - Page 51

Network Services Filter

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3. Enter a word or phrase and click the Add button. 4. Click Apply. NOTES: • The Keyword 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 Keyword Filter. • Web pages compressed using HTTP compression cannot be filtered. HTTPS pages also cannot be blocked using a keyword filter. 4.5.4 Network Services Filter The Network Services Filter blocks LAN to WAN packet exchanges and restricts network clients from accessing specific web services such as Telnet or FTP. To set up a Network Service filter: 1. From the navigation panel, go to Advanced Settings > Firewall > Network Service Filter tab. 2. On the Enable Network Services Filter field, select Yes. 3. Select the Filter table type. Black List blocks the specified network services. White List limits access to only the specified network services. 4. Specify the day and time when the filters will be active. 5. To add a network service filter, enter the Source IP, Destination IP, Port Range, and Protocol. 6. Click Apply. 51

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51
3. Enter a word or phrase and click the
Add
button.
4. Click
Apply
.
NOTES:
•
The Keyword 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 Keyword Filter.
•
Web pages compressed using HTTP compression cannot be filtered.
HTTPS pages also cannot be blocked using a keyword filter.
4.5.4 Network Services Filter
The Network Services Filter blocks LAN to WAN packet exchanges
and restricts network clients from accessing specific web services
such as Telnet or FTP.
To set up a Network Service filter:
1. From the navigation panel, go to
Advanced Settings
>
Firewall
>
Network Service Filter
tab.
2. On the
Enable Network Services Filter
field, select
Yes
.
3. Select the
Filter table type
.
Black List
blocks the specified
network services.
White List
limits access to only the specified
network services.
4. Specify the day and time when the filters will be active.
5. To add a network service filter, enter the Source IP, Destination
IP, Port Range, and Protocol.
6. Click
Apply
.