D-Link DFL-CPG310 Product Manual - Page 254
Null Payload, e able hosts.
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Using SmartDefense In this field... Do this... Action Protection for SWIPE - Protocol 53 / IP Mobility - Protocol 55 / SUN-ND - Protocol 77 / PIM - Protocol 103 Specify what action to take when an IPv4 packet of the specific protocol type is received, by selecting one of the following: • Block. Drop the packet. This is the default. • None. No action. Null Payload Some worms, such as Sasser, use ICMP echo request packets with null payload to detect potentially vulnerable hosts. You can configure how null payload ping packets should be handled. Table 45: Null Payload Fields In this field... Do this... Action Specify what action to take when null payload ping packets are detected, by selecting one of the following: • Block. Block the packets. This is the default. • None. No action. 238 D-Link NetDefend firewall User Guide
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