SmartDefense Categories
402 Check Point UTM-1 Edge User Guide
Table 81: Strict TCP
In this field… Do this…
Action Specify what action to take when an out-of-state TCP packet arrives, by
selecting one of the following:
• Block. Block the packets.
• None. No action. This is the default.
Track Specify whether to log null payload ping packets, by selecting one of the
following:
• Log. Log the packets. This is the default.
• None. Do not log the packets.
Small PMTU
Small PMTU (Packet MTU) is a bandwidth attack in which the client fools the server into
sending large amounts of data using small packets. Each packet has a large overhead that
creates a "bottleneck" on the server.
You can protect against this attack by specifying a minimum packet size for data sent over
the Internet.
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