Cisco emulator--Allow remote Telnet connection to control router/switch

The environment is as follows:

The router is configured as follows. Interface f0/0 Configure the port, IP address 192.168.1.1 255.255.255.0 configuration ip,no shut activation, line vty 0 4 Enter the vty virtual terminal (where 0 4 don't know what it means, as if to say what can be opened up to 4 Terminal? ), password 123 set telnet login password, login active, enable password 456 set Password to execute the Enable command in Telnet

That PC terminal configuration into the play

As you can see, we can control the router directly inside CMD.

Cisco emulator--Allow remote Telnet connection to control router/switch