I'm a week into using IOS and the console, so far just been updating IOS and getting used to the commands. But the line command is not intuitive -- especially the numbers following it -- and I couldn't find references for it.
For example, I know line con 0 is related to console connection, but what exactly does it do? And what does the number 0 mean?
Now, line vty 0 4: I just use it to setup Telnet password without knowing why. Do I assume Telnet whenever I see vty? And why is there a 4 after 0?
Please don't laugh if I make you wanna laugh. Putting "line vty 0 4" in google didn't get any explanation. Let me pre-thank all help here.