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Billion BIPAC-8500 / 8520 SHDSL VPN Firewall Bridge / Router
Chapter 4: Configuration
General Settings
You can choose not to enable Firewall, to add all filter rules by yourself, or enable the
Firewall using preset filter rules and modify the port filter rules as required. The Packet
Filter is divided into two sections: Port Filters and Address Filters, used to filter packets
based-on Applications (Port) or IP addresses.
There are four options when you enable the Firewall, they are:
All blocked/User-defined: no pre-defined port or address filter rules by default,
meaning that all inbound (Internet to LAN) and outbound (LAN to Internet) packets
will be blocked. Users have to add their own filter rules for further access to the
Internet.
High/Medium/Low security level: the pre-defined port filter rules for High, Medium
and Low security are displayed in Port Filters of Packet Filter.
Select either High, Medium or Low security level to enable the Firewall. The only
difference between these three security levels is the preset port filter rules in the Packet
Filter. Firewall functionality is the same for all levels; it is only the list of preset port filters
that changes between each setting.
If you choose of the preset security levels and then add custom filters, you may
temporarily disable the firewall and recover your custom filter settings by re-selecting the
same security level.
The “Block WAN Request” is a stand-alone function and not relate to whether security
enable or disable. Mostly it is for preventing any scan tools from WAN site by hacker.
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Any remote user who is attempting to perform this action may result in
blocking all the accesses to configure and manage of the device from the
Internet.