THOMSON SpeedTouch 605, User Manual

Page: 135 / 212

Chapter 5
Expert Configuration
E-DOC-CTC-20050429-0104 v1.0
125
5.3.2 Expressions
Overview
Expressions are used in rules for source and destination interface, source and
destination IP address(es) (ranges) and services.
The Expressions page consists of three sections:
Interface
IP
Service
Interface
The
Interface
section bundles all expressions that express a relation based on
Interfaces.
The Expressions table provides following information per expression:
The Name of the expression
A Summary of the expression’s configuration
For more detailed information you can expand the expression (click ).
Adding an interface
related expression
To add a new interface related expression:
1
Click
New
.
2
In the
Interface Expressions Properties
table:
Type a
Name
for the expression.
Select the
Interface group
the expression should relate to. For negative
logic, select
Not
.
Select the
interface
the expression should relate to. An interface is the
connection between the SpeedTouch™ and one of his attached networks.
For negative logic, select
Not
.
3
Click
Apply
.
Expressions are also used by the SpeedTouch™ Stateful Inspection Firewall .