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designate the adapter, it starts capturing packets in a project. You can open two or more projects to focus on
different packets, each project has its own settings and parameters. This chapter introduces how to select a
capture source for a project, how to view captured packet information and how to save results for future analysis
or comparison.
Using a project for capture and analysis
A project is a scheme of capture settings and a container for captured data. You can save a project to hard disk for
Packet Capture
Network Analyzer
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reuse at a later time. Project is an essential ingredient in Colasoft Capsa, you must create a new project or open
an existing project before you start capturing packets or performance other functions.
Colasoft Capsa captures network traffic and analyzed packets on the conditions of project settings. Without
project, you could not do anything even just view old data. Therefore the first thing you should do after launch the
program is to create/open a project. You can choose to create a blank project, select a project template or open
an existing project. Details are described in below sections.
Blank project, saved project and project template
For the first time to use Colasoft Capsa, you can simply click the Start Capture Now button to automatically apply
the predefined settings for capture. You don't need to set project settings, except you have to select the adapter
for this project. Each time when you create a new project, you may always use the blank project to save the time
for setting. If you want to change the settings during capture, you could click the Adapter, Filter or Analyzers icon
in the toolbar, or General Settings... from the Project menu to open the Project Settings dialog, and after
alteration, save the project or save it as a template.
You can open a saved project (if applicable) with its data and settings from the Start Page or by clicking the Open
icon; but when you start capture, Colasoft Capsa will clear or reset some contents in the project buffer.
Colasoft Capsa supports project templates, you can first customize the settings for a project and then save it as a
template. Project templates can be easily loaded from the Start Page.
Opening multiple projects
Colasoft Capsa allows you to open multiple projects for focusing on different packets, each project has its own
project window, capture adapter and project settings, which requires you to operate individually.
Multiple projects let you compare your network under different conditions, helping you find out network problems
more easily. For example, when you have two network segments, you can open two projects: Project 1 focuses on
segment 1 and Project 2 focuses on segment 2.
Note: It may reduce your system performance if you open multiple projects and capture packets simultaneously.
Capture sources
For the first time when you start a capture, you must designate the adapters for the project. Even if you only have
one adapter, you still need to confirm it. If you check the option Always show project settings when start
capture in the Project Settings - General page, Colasoft Capsa will remember your adapter selection and in the
future capture, will not require you to select again.
Colasoft Capsa supports capturing packets from multiple adapters simultaneously (unique to enterprise edition).
To start capture, you must select a valid adapter at a minimum. All supported adapters are listed in the Project
Setting - Adapter page, you can highlight an adapter to see its property information in the lower pane. The
adapter selected will be marked with a tick in the check box.
Packet Capture
Network Analyzer
© 2009 Colasoft. All rights reserved. Colasoft®, the Colasoft logo, Capsa® are among the trademarks or registered trademarks of the company in
the United States and/or other countries. All other trademarks are property of their respective owners. 18 / 18
Colasoft Capsa can capture packets from the following sources:
Ethernet adapters
Colasoft Capsa works with the most of common Ethernet adapters in marketplace.
Localhost TDI loopback traffic
Colasoft Capsa can capture The TDI loopback traffic on your local host, but you must install the Colasoft TDI
Driver first: open the Tools menu and click Packet Capture Drivers..., select Colasoft TDI Driver from the Driver
combo box and push Install. After finish the installation, your localhost LoopBack adapter will be added to the
Local Adapter list in the Project Setting - Adapter page.
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