
63
* Some virus are using “PING” command to attack network, this Router can be
defined as accept or reject “PING” command from WAN or LAN.
Function
Description
IP Fragments
Checking
Checking the IP fragments. When it finds someone from WAN
side tries to attack your network using overlap IP fragments in a
bad attention, this function will check over these packets and
drop them.
IP Address
spoofing
Finding out whether the source address(s) and destination
address(s) are legal IP’s or not. If they are illegal IP’s or multicast
addresses, this function will cast these packets away.
Port Scan
When an IP from Internet tries to scan the IP of Load Balance
Router up to 10000ports/sec (default value), this function will
drop all the packets from this IP within 5 minutes (default value).
TCP SYN
Flooding
(WAN)
When a destination address and destination port of Load
Balance Router receives TCP SYN packet from WAN over 10000
times (default value) in one second, Load Balance Router will
close this address and port for 5 minutes (default value)
temporarily.
TCP SYN
Flooding
(LAN)
When an IP in LAN of Load Balance Router tries to send TCP
SYN packet over 10000 times (default value) in one second,
Load Balance Router will close this source address for 5 minutes
(default value) temporarily.
ICMP
Flooding
(WAN)
When a destination address of Load Balance Router receives
ICMP from WAN over 10000 times (default value) in one second,
Load Balance Router will close this address for 5 minutes
(default value) temporarily.
ICMP
Flooding
(LAN)
When an IP in LAN of Load Balance Router tries to send ICMP
over 10000 times (default value) in one second, Load Balance
Router will close this source address for 5 minutes (default value)
temporarily.
UDP Flooding
(WAN)
When a destination address of Load Balance Router receives
UDP from WAN over 10000 times (default value) in one second,
Load Balance Router will close this address for 5 minutes
(default value) temporarily.
UDP Flooding
(LAN)
When an IP in LAN of Load Balance Router tries to send UDP
over 10000 times (default value) in one second, Load Balance
Router will close this source address for 5 minutes (default value)
temporarily.