Please I am giving a call to action to all network engineers as well as people who are just interested in learning more about computer networking, get a network emulator!
You do not have to feel as if money is holding you back from learning the things you want to learn in networking! There are plenty of free network emulation tools that you can use to learn everything you need to in order to become a professional network engineer!
Please do yourself a favour and put in that little bit of effort to use network emulators! You will thank yourself in the future!!
Emulators I trust and know you can learn from FOR FREE!
Packet Tracer - https://www.netacad.com/courses/packe...
GNS3 - https://gns3.com/
EVE-NG - http://eve-ng.net/
I really hope you take this to heart!