Sunday, January 24, 2021

How to configure telnet on cisco router || telnet configure || what is telnet || telnet kya hota hai || टेलनेट को कैसे कॉन्फ़िगर करें || advantage of telnet || كيفية تكوين telnet || как настроить телнет || come configurare telnet || cara mengkonfigurasi telnet || டெல்நெட்டை எவ்வாறு கட்டமைப்பது

January 24, 2021 2 Comments

Hello and Welcome to Networking Mafia, today i am going to show how to enable Telnet on Cisco router.

I am using GNS3 for doing this demonstration.

Before going below first take a short look what is telnet and it's advantage or disadvantage.

*Telnet is a protocol that allows for raw text-based communication over a TCP/IP network.*

Advantages
1)Telnet client is versatile
2)Can be used cross-platform
3)Unlimited access to target resources

Disadvantages
1)Unencrypted data exchange
2)Full access makes it easier for hackers
3)Only few servers can be reached via Telnet

Note:-Telnet is not encrypted, so for sensitive data it is recommended to use SSH instead, we will see what is SSH in another blogs.

So let's see configuration.

Open your remote location Router and do the basic configuration.

R1#conf t
R1(config)#interface serial 0/0
R1(config-if)#ip address 192.168.1.1 255.255.255.0
R1(config-if)#no shutdown

Same open your local area router and do the basic configuration according to your network.

R2#conf t
R2(config)#interface serial 0/0
R2(config-if)#ip address 192.168.1.2 255.255.255.0
R(config-if)#no shutdown
After basic configuration now check are you able to ping R2 to R1

If yes then your basic configuration has been successful.

Now go your remote location router and do the telnet configuration.

R1#conf t
R1(config)#enable password Mafia
R1(config)#line vty 0 4
R1(config-line)#password Mafia
R1(config-line)#login
R1(config-line)#^Z

Now we configured Telnet successfully, for testing purpose go on your local router and type telnet 192.168.1.1 if you able to access Router 1 then configuration has done.