Encore electronic 802.11n Manuale Utente

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Port Filter   
The firewall could not only obstruct outside intruders from intruding your system, but 
also restricting the LAN users. Port filtering restricts certain type of data packets from 
your LAN to Internet through the router. After marking or clearing the enable checkbox, 
it takes 5 seconds for this device to refresh the page. 
 
 
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