QNO QVF8034, Руководство пользователя

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2WAN 4LAN SMB Multi-WAN VPN QoS Router
80
SPI (Stateful Packet
Inspection) ： ： ： ：
This enables the packet automatic authentication detection
technology. The Firewall operates mainly at the network layer. By
executing the dynamic authentication for each connection, it will
also perform an alarming function for application procedure.
Meanwhile, the packet authentication firewall may decline the
connections which use non-standard communication protocol.
DoS (Denial of
Service) ： ： ： ：
This averts DoS attacks such as SYN Flooding, Smurf, LAND, Ping
of Death, IP Spoofing and so on.
Block WAN request ： ： ： ： If set as Enabled, then it will shut down outbound ICMP and
abnormal packet responses in connection. If users try to ping the
WAN IP from the external, this will not work because the default
value is set as activated in order to decline the outbound
responses.
Remote
Management ： ： ： ：
To enter the device web- based UI by connecting to the remote
Internet, this feature must be activated. In the field of remote
browser IP, a valid external IP address (WAN IP) for the device
should be filled in and the modifiable default control port should
be adjusted (the default is set to 80, modifiable).
Multicast Pass
Through
：
： ：
：
There are many audio and visual streaming media on the
network. Broadcasting may allow the client end to receive this
type of packet message format. This feature is off by default.
Prevent ARP Virus
Attack
：
This feature is designed to prevent the intranet from being
attacked by ARP spoofing, causing the connection failure of the
PC. This ARP virus cheat mostly occurs in Internet cafes. When
attacked, all the online computers disconnect immediately or
some computers fail to go online. Activating this feature may
prevent the attack by this type of virus.