In this post, we are going to learn about the Basic Telnet Commands and How to configure Telnet in Cisco Router with the help of packet tracer. Before that, let’s understand what is Telnet, it’s port number and it’s used.
What is Telnet?
Telnet is a protocol which is basically used to take a remote connection of a device available in a network using command line interface. The Telnet port number is 23.
How to configure Telnet in Cisco Router
Follow this video tutorial because all the basic telnet commands which I am going to explain you right now are used here.
How to configure Telnet in Cisco Packet Tracer
In this example, we are going to take the remote controller of Router 4 from PC 1 with the help of Telnet Protocol. The entire network is configured with OSPF Protocol. Click here to know, how it is configured.
Basic Telnet Commands
Note, here are the uses of Telnet Commands.
- “Router>en” is used to enable privilege mode.
- “Router#conf t” is used to enable configuration mode.
- “Router(config)#line vty ?” used to check, how many VTY connections are available. VTY connections mean, total how many devices can access this router using telnet at a time.
- Here it says, “<0-15> First-Line number” means, total 16 connections are available which start from 0 to 15.
- “Router(config)#line vty 0 15″ is used to enable telnet and here we are enabling all the 16 connections from 0 to 15. For example, if you want to allow a single PC to take a remote connection at a time then run the command line vty 0.
- “Router(config-line)#password ccna” is used to enable telnet password. Here, the password is ccna.
- “Router(config-line)#enable secret cisco” is used to enable privilege password. Here the password is cisco.
Now, Let’s access the Router 4 from PC 1 using Telnet Command.
- “Telnet 3.0.0.2” is used to take the remote connection of Router 4 assigned with the IP Address 3.0.0.2 using telnet.
- “Password: ccna” enter the password you have assigned for the telnet connection. Here the password id ccna.
- “Router>en” is used to enable privilege password.
- “Password: cisco” enter the privilege password. Here the password is cisco.
- Now, you have full access to router 4. you can check the configuration and also you can make changes.
- “Router#show protocol” is used to check the router IP configuration.
So, this is how easily you can configure telnet in Cisco Router with the help of basic telnet commands. If you have any doubt, check the telnet video tutorial.
