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

GNS3,Wireshark,SecureCRT-related software packages can be extracted in the following link

Link: https://pan.baidu.com/s/17T2KKzAR2lZUJqBzZoYciw

Extraction code: izcq

Baidu encyclopedia:

GNS3 is a network virtual software with a graphical interface that can run on multiple platforms (including Windows, Linux, and MacOS, etc.). Cisco network equipment administrators or people who want to pass the Cisco certification exam such as CCNA,CCNP,CCIE can use it to complete the relevant experimental simulation operations. At the same time, it can also be used to virtually experience the Cisco Internet operating system IOS or to verify the relevant configuration that will be deployed on a real router.

Winpcap (windows packet capture) is a free, public network access system under the windows platform. The purpose of the project to develop winpcap is to provide win32 applications with the ability to access the underlying network. It is used for direct network programming under windows system.

(1) installation steps and operation of GNS3

1. Open the downloaded package and open the GNS3 installer to install it.

2, do not select these two items here, we will have a separate installation package to install, if you choose these two items will be downloaded online may fail.

3, this installation path must not be in Chinese!

4. Here you will be prompted to install winpcap while continuing the installation.

We install wireshark immediately after we install GNS3

(2) install Wireshark

Wireshark (formerly known as Ethereal) is a network packet analysis software. The function of network packet analysis software is to capture network packets and show the most detailed network packet data as much as possible. Wireshark uses WinPCAP as the interface to exchange data messages directly with the network card.

1. Open the package, open the wireshark installer, and install it

2. It is best not to modify this installation path to avoid problems in subsequent use.

3, do not install winpcap repeatedly here, we have already installed it before

(3) configure the environment of GNS3

1. Open the GNS3 software without setting the save path

2. Let's install and configure the IOS image file first.

3. To optimize the environment of GNS3, we first create two network devices to connect and open, and then carry out idie numerical calculation in the open state to optimize the use of GNS3 software.

(4) install CRT

SecureCRT is a terminal emulation program that supports SSH (SSH1 and SSH2). To put it simply, it is the software that logs into the host computer of UNIX or Linux server under Windows.

SecureCRT supports SSH, as well as Telnet and rlogin protocols. SecureCRT is an ideal tool for connecting operations, including Windows, UNIX, and VMS. Encrypted files can be transferred by using the included VCP command line program. There are all the features of popular CRTTelnet clients, including: automatic registration, different features for different hosts, printing function, color setting, variable screen size, user-defined key bitmap and excellent VT100,VT102,VT220 and ANSI competition. Can be run from the command line or from a browser. Other features include text manuscripts, easy-to-use toolbars, user's key bitmap editor, customizable ANSI colors, etc. SecureCRT's SSH protocol supports DES,3DES and RC4 passwords and password authentication with RSA.

1. Open the package, open the CRT package, extract it, and then open the X64 package for installation

(5) cracking CRT

1. Activate secureCRT. First, copy and paste the cracked patch to the directory where the software is running.

2. Right-click to crack the patch, run as an administrator, generate the key and set up the path.

3. Open the CRT software and crack it to get permanent use

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