How to use telnet in packet tracer
using telnet can be between switches or routers, also a pc can use telnet to connect to the switch or router inside the services of the pc. It is useful in big companies to use telnet to connect remotely to another switch or router. Telnet is really bad security because a hacker can view all the text clearly using Wireshark or a monitor. SSH (Secure Shell Hash) is better to use it now rather than Telnet.