How to learn to crash in Cisco if it is not there?

Question

Cisco

How to learn how to break into Cisco, but I don’t want to buy it, because it is expensive, I don’t need it for other purposes, and there are many different models.
Is it possible to learn how to work with Cisco equipment without it, but only with a computer, descriptions, books, etc.?

Answer 1

Packet Tracer

Answer 2

Use an emulator.
https://habr.com/post/262027/

Answer 3

Graze on forum.nag.ru in a flea market, it costs a penny there, some 8XX or 28XX for practice for the eyes and ears will be.

Answer 4

Up to the CCNA level, it’s really possible to learn from textbooks.
The next step is practical skills.
On AVITO - 1841 for 3000 rubles are lying around. You can try everything except Voice.
For a voice in the same place 1761
To begin with, the most important thing is if you want iron iron.
Packet Tracer is a wonderful thing. I recommend to everyone.
In many ways, even better than hardware - the number of hardware is limited, and in PacketTracer you can build a fairly large network.