The Telnet protocol is capable of remotely managing network devices or computers over LAN or WAN. It is still popular today because it was one of the first protocols used with the launch of the Internet in 1969.
What is Telnet?
Telnet is an abbreviation of “teletype network”, “terminal network” or “telecommunications network”.
This protocol is used to configure remote hosts. So, for example, you use Serial Cable to initial configure a Cisco Router, and after you enable this protocol, you can configure it remotely from a local or remote network without being near this device.
You can configure all network devices using the TCP/IP protocol with this protocol. In addition, a user name and password are required when connecting to a remote device.
When you transfer data with this protocol, it is an unsafe protocol because of your data sends as Clear Text. Instead of using Telnet over the network, SSH protocol is preferred.
How to Use it?
To use telnet, it must first be enabled on a host to be managed. After you enable it, you can easily connect to your remote host via the TCP 23 port with Command Prompt (CMD).
There are two different structures to use/configure the Telnet protocol. These; Server and Client. If you configure a server, you must install or activate the Client service to connect to it remotely.
After the definition of Telnet, now let’s examine how to use Telnet in Windows 10.
In this article, after enabling Telnet Client, we will provide a connection to the active Telnet Server on the ADSL Router.
How to Use Telnet in Windows 10
You can easily enable and use it on Microsoft Win XP, Vista, 7, 8, 8.1, and 10 operating systems.
Follow the steps below to activate/install Telnet Client.
Right-click on the Start menu, and then click Programs and Features.
In the Programs and Features, click Turn Windows features on or off.
When the Windows features open or close window opens, select the Telnet Client option.
After selecting the Client option, press the OK button.
Applying changes to your system …
After installing the service, click on the Close button.
Open the Run by pressing the Windows Key + R together, type “cmd” and press the Enter key. After running the CMD prompt, type “telnet” at the command prompt and press Enter to start this service.
After you see the welcome message, you can see that it works successfully.
Now, type O (o) at the CMD prompt to connect to the ADSL Router on the local area network and press Enter.
Type your default gateway IP address to access the ADSL Modem and press Enter.
When you look at the image below, you can see a successful connection to an ADSL router using CMD.
How to Enable it using CMD
Another way to enable this service is to use the CMD command prompt. You can enable or disable it by using the CMD command prompt.
The DISM command is used on the CMD to activate the client. Execute the command below to install Telnet with CMD on the Windows operating system.