SMC Networks SMCBR21VPN - Manual (Page 196)

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‹ 【ICMP Flood Threshold(Per Source IP)Pkts/Sec】: The System
Administrator can enter the maximum number of ICMP packets per
second from attacking source IP Address that is allow to enter the
network / SMC BR21VPN. If the value exceeds the setting one, and
then the device will determine it as an attack.
‹ 【ICMP Flood Threshold Blocking Time(Per Source
IP)Seconds】:When the SMC BR21VPN determines as being attacked,
it will block the attacking source IP address in the blocking time you set.
After blocking for certain seconds, the device will start to calculate the
max number of ICMP packets from attacking source IP Address. And if
the max number still exceed the define value, it will block the attacking
IP Address continuously.
Detect UDP Attack:
„ When Hackers continuously send PING packets to all the machines of the
LAN networks or to the SMC BR21VPN via broadcasting, your network is
experiencing an UDP attack.
‹ 【UDP Flood Threshold(Total)Pkts/Sec】: The System Administrator
can enter the maximum number of UDP packets per second that is
allow to enter the network/SMC BR21VPN. If the value exceeds the
setting one, and then the device will determine it as an attack.
‹ 【UDP Flood Threshold(Per Source IP)Pkts/Sec】: The System
Administrator can enter the maximum number of UDP packets per
second from attacking source IP Address that is allow to enter the
network/SMC BR21VPN. If the value exceeds the setting one, and then
the device will determine it as an attack.
‹ 【UDP Flood Threshold Blocking Time ( Per Source IP) Seconds】:
When SMC BR21VPN determines as being attacked, it will block the
attacking source IP in the blocking time you set. After blocking for
certain seconds, the device will start to calculate the max number of
UPD packets from attacking source IP. If the max number still exceed
the define value, it will block the attacking IP Address continuously.