User manual

Reference: Configuration options
Avira Professional Security - User Manual (Status: 14 Dec. 2012) 146
Setting
Rules
Low
Incoming blocked types: no type.
Outgoing blocked types: no type.
Assume flooding if delay between packets is less
than 50 ms.
Reject fragmented ICMP packets.
Medium
Same rule as for the low level.
High
Incoming blocked types: several types
Outgoing blocked types: several types
Assume flooding if delay between packets is less
than 50 ms.
Reject fragmented ICMP packets.
Incoming blocked types: no types/several types
With a mouse click on the link a list of ICMP packet types is displayed. From this list
you can specify the desired incoming ICMP message types you want to block.
Outgoing blocked types: no types/several types
With a mouse click on the link a list of ICMP packet types is displayed. From this list
you can select the desired outgoing ICMP message types you want to block.
Flooding
With a mouse click on the link, a dialog box is displayed where you can enter the
maximum allowed ICMPA delay.
Fragmented ICMP packets
With a mouse click on the link, you have the choice to reject or not to reject
fragmented ICMP packets.
TCP port scan
With this rule, you can define when a TCP port scan is assumed by the FireWall and what
should be done in this case. This rule serves for preventing so-called TCP port scan
attacks that result in a detection of open TCP ports on your computer. This kind of attack is