MANUAL

LayerView's Packet Filtering feature allows you to display only those packets which are of interest to you in the Low Level view.

The packets to include and exclude are specified by means of a packet filter expression.

To create a new packet filter, open the Tools menu and select Create Packet Filter.... This will open the Filter Rule dialog:
The filter rule being built is shown at the top of the dialog. You may enter a rule manually by entering a filter expression into this box.

You can use the controls below the Rule box to build a flexible filter expression automatically. To do so:

1. Select a protocol field from the tree on the left. For example, expand IPv4 and select Src IP if you want to build a filter based on the IPv4 source address.

2. Select a comparator (for example, equal to [=], not equal to [!=], greater than [>], etc.) from the drop-down list box. For IPv4 Src IP the available comparators are = and !=.

3. Enter the value to complete the expression. For example enter 192.168.0.1 in the box to compare the IPv4 Src IP of all packets to 192.168.0.1.

4. Click the Add button.

You can repeat this process multiple times to add extra terms to the filter expression being built.

Finally click the OK button to apply the filter.