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II.
Parameter explanation
Follow these instructions to configure global firewall settings.
Configure any of the following settings that display in the
Firewall Global Configuration table:
Blacklist Status: If you want the device to maintain and
use a black list, click Enable. Click Disable if you do not
want to maintain a list.
Blacklist Period(min): Specifying the number of minutes
that a computer's IP address will remain on the black list
(i.e., all traffic originating from that computer will be
blocked from passing through any interface on the MT800).
For more information, see Managing the Black List below.
Attack Protection: Click the Enable radio button to use
the built-in firewall protections that prevent the following
common types of attacks:
IP Spoofing: Sending packets over the WAN
interface using an internal LAN IP address as the
source address.
Tear Drop: Sending packets that contain overlapping
fragments.
Smurf and Fraggle: Sending packets that use the
WAN or LAN IP broadcast address as the source
address.
Land Attack: Sending packets that use the same
address as the source and destination address.
Ping of Death: Illegal IP packet length.
DoS Protection: Click the Enable radio button to use the
following denial of service protections: SYN DoS, ICMP
DoS, Per-host DoS protection.
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