cisco ios: meaning of vty numbers
In an example in the book I'm looking at, it has a config command "line vty 0 15" followed by "password telnet" to change the login password. Could someone explain what the numbers are for (0 15)? And why 0 15 was chosen for the example instead of 0 0 or something else? I know that they refer to the "First Line range" and "Last Line range", but I'm not sure what that means.