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Internet Sharing Gateway User Guide
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Allow
•
Configuration...
•
Allow Internet
access to be
•
disabled
Firewall
If enabled, DoS (Denial of Service) attacks will be detected and
Enable DoS
blocked. The default is enabled. It is strongly recommended that this
Firewall
setting be left enabled.
Note:
•
•
This setting affects the number of "half-open" connections allowed.
Threshold
•
•
•
If checked, then UPnP users can change the configuration.
If Disabled, UPnP users can only view the configuration. But
currently, this restriction only applies to users running Windows
XP, who access the Properties via UPnP. (e.g. Right - click the
Internet Broadband Router in My Network Places, and select
Properties).
If checked, then UPnP users can disable Internet access via this
device.
If Disabled, UPnP users can NOT disable Internet access via this
device. But currently, this restriction only applies to users running
Windows XP, who access the Properties via UPnP. (e.g. Right -
click the Internet Broadband Router in My Network Places, and
select Properties).
A DoS attack does not attempt to steal data or damage your PCs,
but overloads your Internet connection so you can not use it - the
service is unavailable.
The Internet Broadband Router uses "Stateful Inspection"
technology. This system can detect situations where individual
TCP/IP packets are valid, but collectively they become a DoS
attack.
A "half-open" connection arises when a remote client contacts the
Server with a connection request, but then does not reply to the
Server's response.
While the optimum number of "half-open" connections allowed
(the "Threshold") depends on many factors, the most important
factor is the available bandwidth of your Internet connection.
Select the setting to match the bandwidth of your Internet
connection.
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