AirLive IP-2000VPN - Manual (Page 54)

5.6 Security Options
This screen allows you to set Firewall and other security-related options.
Data – Security Options Screen
Firewall
Enable DoS
Firewall
If enabled, DoS (Denial of Service) attacks will be detected and blocked. The
default is enabled. It is strongly recommended that this setting be left enabled.
Note:
• 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.
• This device uses "Stateful Inspection" technology. This system can detect
situations where individual TCP/IP packets are valid, but collectively they
become a DoS attack.
Threshold This setting affects the number of "half-open" connections allowed.
• 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.
AirLive IP-2000VPN User’s Manual 51