You can use the CLI telnet command to open a Telnet session to a remote device:
user@host> telnet host <8bit> <bypass-routing> <inet> <interface interface-name> <no-resolve> <port port> <routing-instance routing-instance-name> <source address>
To escape from the Telnet session to the Telnet command prompt, press Ctrl-]. To exit from the Telnet session and return to the CLI command prompt, enter quit.
Table 48 describes the telnet command options. For more information, see the JUNOS System Basics and Services Command Reference.
Table 48: CLI telnet Command Options