Users Manual

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If the default inbound rule is set to Allow for NAT-enabled WANs, no inbound Allow firewall rules will be required
for inbound port forwarding and inbound NAT mapping rules. However, if the default inbound rule is set as Deny,
a corresponding Allow firewall rule will be required.
IntrusionDetectionandDoSPrevention 

The Balance can detect and prevent intrusions and denial-of-service (DoS) attacks from the Internet. To
turn on this feature, click , check the Enable check box for the Intrusion Detection and DoS
Prevention, and press the Save button.
When this feature is enabled, the Balance will detect and prevent the following kinds of intrusions and
denial-of-service attacks.
● Port scan
o NMAP FIN/URG/PSH
o Xmas tree
o Another Xmas tree
o Null scan
o SYN/RST
o SYN/FIN
● SYN flood prevention
● Ping flood attack prevention