If you use an external authentication module (e.g., TACACS etc.), those generally are able to enforce the failed login lockout feature. Here is a link to the admin guide section explaining how to do that.
I'm working on a project that includes basic router configurations. I configurated everything including: line console 0, line vty 0 15 and secret passwords. There are 3 routers in the network and every LAN is going t...