en
conf t

username admin1 secret admin1pass
username admin2 secret admin2pass

enable secret cisco123

line vty 0 4
 login local
 transport input telnet
exit

!!! Now from Win 7 PC

1) Open putty app -> 
        Host            : 192.168.1.1
        Connection Type : telnet
2) lets do some sample configuration
    -> en
    -> conf t
    -> ip route  0.0.0.0  0.0.0.0  200.1.1.1
    -> do show ip route static
3) open cmd of the pc -> ping 8.8.8.8

!! now telnet from internet user pc -> telnet 200.1.1.2