Telnet login using IP address

Cisco


Line vty 0 4

Logging synchronous

Password (level 1 password) =>encrypt password

Login local =>enable password login

Session-limit 1 =>limit to 1 login session

Motd-banner =>display warning message


Juniper


set system services telnet  => enable telnet service on the router
set system login user user1 class super-user authentication plain-text-password


=>You will prompted to set your password


Replace user1 with the username you will like to create
Replace super-user with the level of access right you will like to give to the user