Planet Technology ADE-4200 ユーザーズマニュアル

PLANET ADSL VPN / Firewall Router 

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users from accessing the Internet. The functions include:  

1.  Firewall: prevent access from an outside network, the router provides three levels of 

security support. 

l  NAT  natural  firewall:  it  masks  LAN  users

’  IP  addresses  which  are  invisible  to 

outside users on the Internet, making it much more difficult for a hacker to target a 
machine on your network. This natural firewall is on when NAT function is enabled. 

l  Firewall Security and Policy (General Settings): inbound direction of Packet Filter 

rules  to  prevent  unauthorized  computers  or  applications  accessing  the  local 
network.  

l  Intrusion  Detection:  Enable  Intrusion  Detection  to  detect,  prevent  and  log 

malicious attacks. 

2.  Access Control: prevent access from a local network. 

l  Firewall  Security  and  Policy  (General  Settings):  outbound  direction  of  Packet 

Filter  rules  to  prevent  unauthorized  computers  or  applications  accessing  the 
Internet. 

l  MAC Filter rules: to prevent unauthorized computers

 

accessing the Internet 

l  URL Filter: to block the unwanted websites from accessing inappropriate material 

from the local network.

 

To prevent unauthorized computers access to the Internet and local network, you can 
either choose not to enable Firewall, add the MAC address and URL filter rules by 
yourself, or enable the Firewall and modify the packet filter rules if required. The Packet 
Filter is categorized as Port Filters and Address Filters, configured to filter the packets 
based-on Applications (Port) and IP addresses of the computers respectively. 

There are five items under the Firewall section: General Settings, Packet Filter, 
Intrusion Detection, MAC Address Filter and URL Filter.  

 

When you click General Settings, you get the following figure.