User`s guide

BLACK BOX® CS Installation, Administration, and User’s Guide 193
Network
Figure 8-32:Firewall Configuration “Add Rule” and “Edit Rule”
TCP Protocol Fields and Menu Options
The following table defines the fields and menu options in the “TCP Options
Section.
”
Table 8-13: Expert > TCP Options Fields
UDP Protocol Fields
If UDP is selected as a protocol when specifying a rule, the additional fields
shown in the following figure appear at the bottom of the form.
Field/Menu Option Definition
Source Port
- OR -
Destination Port
-AND-
to
A port number for filtering in the “Source Port” or “Destination
Port” field. A range of IP address can be specified by adding a
second port number in the “to” field. TCP packets are filtered for
for the range of specified IP addresses.
TCP Flags
The TCP flags cause packets to be filtered for the specified flag
and the selected condition. The flags are: “SYN” (synchronize),
“ACK” (acknowledge), “FIN” (finish), “RST” (reset), “URG”
(urgent) or “PSH” (push), and the conditions are either “Any,”
“Set,” or “Unset.”
Inverted
By checking this box, The TCP options are "Inverted". "Inverting"
an item negates the selected rules. Rules will apply to everything
except the selected options.