User manual

Table Of Contents
Reference: Configuration options
119
Accepting of ICMP packets
With a mouse click on the link you have the choice to allow or deny special defined
incoming ICMP packets.
IP address
By clicking on this link with the mouse, a dialog window opens in which you can enter
the required IP address.
IP mask
By clicking on this link with the mouse, a dialog window opens in which you can enter
the required IP mask.
Report file
By clicking on the link with the mouse you can decide whether to write to a report file or
not if the package complies with the rule.
The advanced feature enables content filtering. For example packets can be rejected if
they contain some specific data at a certain offset. If you do not want to use this option
do not select a file or choose an empty file.
Filtered content: Data
With a mouse click on the link a dialog box appears in which you can select a file that
contains the specific buffer.
Filtered content: Mask
With a mouse click on the link a dialog box appears in which you can select the specific
mask.
Filtered content: Offset
With a mouse click on the link a dialog box appears in which you can define the filtered
content offset. The offset is computed from where ICMP header ends.
Predefined rules for IP packets
Setting: Low Setting: Medium Setting: High
- - Deny all IP packets
Deny IP packets from
address 0.0.0.0 with
mask 0.0.0.0.
Don't log when packet
matches rule.
Accepting/rejecting IP packets
By clicking on the link with the mouse, you can decide whether you want to accept or
reject specially defined IP packages.
IP address
By clicking on this link with the mouse, a dialog window opens in which you can enter
the required IP address.
IP mask
By clicking on this link with the mouse, a dialog window opens in which you can enter
the required IP mask.
Report file