Chapter 5: Filters; How To Create A Filter; How To Bind A Filter To A Rule - Network Instruments Matrix User Manual

How to create a filter

You can choose what network traffic reaches your analysis tools. Use filters to ensure that only packets with
certain characteristics are forwarded to tool ports.
To create a filter:
1. Starting in the dashboard, click Rules.
The rules and filters designer appears, where rules and filters can be created and edited.
2. Ensure the Filters tab is selected.
3. Click New.
The filter opens and is ready to edit.
4. Make your changes.
5. Click Save.
You successfully created a filter. The filter determines what packets are forwarded (or not forwarded) to tool
ports and ultimately the devices connected to them.
For the filter to take effect, you must bind it to a rule and apply the rule in a layout.

How to bind a filter to a rule

Before a filter can take effect, you must bind the filter to a rule. The filter takes effect when the rule is applied in a
layout.
Because a rule—not a filter—is what connects network ports to tool ports, binding a filter to a rule is simply
the first step. Only after the rule is applied in a layout does the filter begin affecting the data arriving at analysis
tools. The same filter can be bound to any number of rules.
To bind a filter to a rule:
1. Starting in the dashboard, click Rules.
The rules and filters designer appears, where rules and filters can be created and edited.

Chapter 5: Filters

Filters | 23