أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
there are minimum configuration on the router to accept telnet connection
the line vty must be configured with password and the command login if you aren't using user authentication locally or on remote server like radius or tacacs server
* if yuo don't have the enable password/secret configured you will be stuck on user mode
