QNO VPN QoS User Manual page 186

1x100mbps wan + 4x100mbps switch lan + 2xusb family &small business ipsec vpn solution
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Syslog Server:
Log Setting
Alert Log
The device provides the following warning message. Click to activate these features: Syn Flooding,
IP Spoofing, Win Nuke, Ping of Death / Unauthorized Login Attempt.
Syn Flooding:
IP Spoofing:
Win Nuke:
Ping of Death:
Unauthorized
Login:
The device provides external system log servers with log collection
feature. System log is an industrial standard communications protocol.
It is designed to dynamically capture related system message from the
network. The system log provides the source and the destination IP
addresses during the connection, service number, and type. To apply
this feature, enter the system log server name or the IP address into
the empty "system log server" field.
Bulky syn packet transmission in a short time causes the overload of the
system storage of record in connection information.
Through the packet sniffing, hackers intercept data transmitted on the
network. After they access the information, the IP address from the sender
is changed so that they can access the resource in the source system.
Servers are attacked or trapped by the Trojan program.
The system fails because the sent data exceeds the maximum packet that
can be handled by the IP protocol.
If intruders into the device are identified, the message will be sent to the
system log.
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