Shulou(Shulou.com)06/03 Report--

One step to understand the simple installation process and operation optimization of GNS3 (1) GNS3 is a simulation software for simulating route switching, including post-firewall simulation configuration of the running environment. Everyone likes to try out the new version, and bloggers choose 1.3 stable version to install it. First, the installation steps of GNS3: 1. Double-click GNS3.exe to install

two。 Click "Next" when prompted to proceed to the next step

3. We must pay attention to it until this step.

​ Wireshark is the data capture package software, and SolarWinds Response is the security module, which we will install separately later. If installed by default, it will be automatically downloaded online during the installation process, which is not only time-consuming, but also failed to display at the end of the installation.

So here we cancel the ticks before Wireshark and SolarWinds Response, and click "Next" to proceed to the next step.

4. When it comes to this step, it is also very critical that Chinese (including spaces) must not appear in the path selection, and Chinese (including Chinese) should not appear in the disk replacement path.

5. During the installation process, you will jump out of the WinPcap component installation and click "Next" to continue the component installation.

6. Select No here and click "Next"

7. Do not click here to run GNS3, because there are components that have not been fully installed before, so remove the check and click Finish.

8. After the GNS3 installation is complete, install Wireshark directly and double-click the installation.

9. Desktop Icon desktop icon shortcut, click tick, click Next

10. Do not change the installation path, click Next

11. Uncheck Install WinPcap. It has been installed before installing GNS3. Click install.

twelve。 If you do not choose the last two items, click "Finish" to complete the installation.

The installation steps for GNS3 have been completed at this step. Second, GNS3 environment optimization: 1. At this time, double-click on the installed GNS3, the pop-up window, the lower left corner of the tick, so that after opening the software will not jump out of this pop-up window.

two。 After turning it off, a prompt box will pop up for you to create a new project without having to choose, either by clicking the X in the upper right corner or the Cancel in the lower right corner.

3. After entering the GNS3 interface, please see the following figure:

4. Click on the router icon and no available devices are found.

5. At this point, we click on the drop-down menu Preferences of "Edit" in the upper menu bar.

6. Select New under IOS routers under Dynamips

7. This step is to find the image file, pay attention to the path choice do not have Chinese

8. Find the folder of the image file, we choose to load the latest version of C 3725, double-click 9. 0. After loading the C3725 image, we can manually load the business veneer and configure the interface, so here we only need to follow the default installation and do the operation.

10. After completing the operation, we click on the routing tool picture, and we can find the routing device.

11. At this time, we set up two routing devices in the topology operation area and connect them.

twelve。 When running the equipment, we will find that the occupancy rate of the system CPU is very high.

13. At this point, we have to set the Idle value, when setting the Idle value, the device must be running, in the suspend and stop state, the Idle value cannot be set.

14. According to the prompt, select the value marked "*" and select apply after the drop-down finds it.

The occupancy rate of 15.CPU immediately dropped from about 51% to about 5%.

At this point, the installation process and some functional optimizations of GNS3 have been completed.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.