Along with the continuous development of technology, countless devices have been created to help people solve complex problems in business, work and daily life. One of those handy devices is the Cisco router. This device is compared as a breakthrough to mankind.
Has your curiosity been sparked yet? Keep reading this article to figure out what a Cisco router is and how to set Cisco router step by step.
About Cisco Router
Have you ever wondered how big businesses can handle such a huge amount of data? Do they have any powerful tools to support them? Most large-scale businesses use modern electronic equipment to help them process the necessary information quickly and accurately.
One of the indispensable devices is the router. This product has been used by more and more people. So how does this product work? Why is it used so much?
What is the router?
The router is regarded as one of the devices that outline the transmission line to help information and signals be transmitted to each other quickly, accurately and securely on the current network.
This device makes it possible for us to make a connection with each other through the Lan and Wan network anywhere in the world. This is also the reason why many enterprises have used this product because it is very useful to connect branches, subsidiaries, representative offices, thus helping to transmit information and data in a quick and secure way.
The main function of the router
In a nutshell, the router has the function of sending information packets between two or more networks in a system from the router to the endpoints.
The router separates the computer networks into specific segments, reducing the broadcast performance of security functions, connecting the computer network or the user over long distances. The router is responsible for performing remote access.
Why Cisco router?
On the market today, there are many different router brands. However, the most prominent and popular one is Cisco– a famous and long-standing big man who has never lost his position in the minds of customers.
If you are technology savvy or simply interested in the support equipment of the office computer system. Surely the name Cisco is not too strange.
The reason that Cisco router has captured the hearts of millions of users probably lies in the security of information security. In the technology era, information and data security issues are always of top concern. Just a leak of information by hackers or network vulnerabilities can determine the success or failure of the business.
In addition, Cisco routers also help optimize services. With the ability to optimize application performance with network information and minimize unnecessary human errors, Cisco Routers help the network to operate quickly and efficiently.
The Cisco router is known to be a secure network transmission system for users and is widely recognized around the world.
How To Set Cisco Router Step By Step?
Cisco router is literally a useful tool in today’s multimedia communications. Its wonderful functions can satisfy all your demands. It’s time to install it now! Let take a look at how to set Cisco router step by step.
Step 1: Give your router a name
The first task when configuring the router is to name it. Why? Because in addition to the router, you will have many services in your network system. Give your Cisco router a name you like to distinguish it from the rest, which will make it much easier for you to do later.
In global configuration mode, use the following command:
Router (config) #hostname TheName
As soon as you press the Enter key to execute the command, you will see the prompt change from the default name (Router) to the name you have just given.
Step2: Set a password for the router
The name you give may be quite beautiful and useful to differentiate, but not enough! What you need right now is to make you Cisco router secure. A password is your savior.
The password is used to restrict access to the router. On a regular basis, we always set the passcode for the vty lines and the console lines on the router.
The passcode is also used to control access to privileged EXEC mode on the router. At that time, only those who are licensed can make changes to the configuration file.
Here are the commands that you need to use to set the console line password:
Router (config) #line console 0
Router (config-line) #password
Router (config-line) #login
We also need to set a password for one or more vty lines to control remote user access to the router and Telnet. Normally Cisco routers have 5 vty lines in order from 0 to 4.
We usually use one password for all vty lines, but sometimes we should set a separate password for a line to prevent the case when all the other 4 lines are in use. Here are the commands to use to set the vty passcode:
Router (config) #line vty 0 4
Router (config-line) #password
Router (config-line) #login
Besides, the enable and enable secret passwords are used to restrict access to privileged EXEC mode. The enable password is only used when we set the enable secret password because this password is encrypted and the enable password is not. The following are the commands used to set the enable secret password:
Router (config) #enable password
Router (config) #enable secret
Step 3: Check with the show command
We have many show commands that are used to check the content of files on the router and to find problems if they occur. In both privileged EXEC and EXEC user modes, when you type “show?”, you will see a list of show commands. Naturally, the number of show commands used in EXEC privileged mode will be greater than in EXEC user mode.
Here are some Show commands you can refer to:
Show controllers serial – displays hardware-specific information about the serial ports.
Show clock – displays the clock installed on the router.
Show hosts – displays a list of names and corresponding addresses.
Show users – shows all users currently connected to the router.
Step 4: Serial port configuration
We can configure the serial port by console or vty lines. Here are the steps to take when configuring the serial port:
First, you enter the global configuration mode, then enter the serial port configuration mode, declare the address and subnet mask. Next, set the clock speed if the cable plugged into the serial port is DCE. If the cable end is DTE then we can skip this.
Each serial port must have an IP address and subnet mask so that it can route IP packets. To configure the IP address we use the following command:
Router (config) #interface serial 0/0
Router (config) #ip address
Step 5: Save your configuration
If you need to edit the configuration file, you must move into the configuration mode and make the necessary changes. For example, if you need to open a port on the router, you must first enter global configuration mode, then enter the configuration mode of that port and use the no shutdown command.
To check what you’ve just changed, use the command show runningconfig. This command will display the contents of the current configuration file. If the results show there are incorrect details, you can edit them by doing the following:
- Use the “no” form of configuration commands.
- Restart the router with the original configuration file in NVRAM.
- Copy the backup configuration file from the TFTP server.
- Delete the boot configuration file with the command erase startup-config, then reboot the router and enter the installation mode.
To save the file, the current configuration is a boot configuration file saved in NVRAM, use the following command:
Router # copy running-config startup-config
Above are some basic steps you need to set your Cisco router. We believe that now the question: “ how to set cisco router step by step” will no longer make you confused.
Cisco routers are used in most large companies, in video conferencing, web conferencing and virtual meeting places and believe us, it can save you a lot of money and make your life better than ever.
Thank you for your attention!