>line 2
> transport input telnet
>!
>
>telnet cisco_ip 2002
>at
>...

Router(config)#line 2
Router(config-line)#transport input telnet
Router#telnet xxx.xxx.xxx.xxx 2002
Trying xxx.xxx.xxx.xxx, 2002 ...
% Connection timed out; remote host not responding

Конфиг:
!
interface Serial0/1
physical-layer async
ip address negotiated
no ip directed-broadcast
ip nat outside
encapsulation ppp
dialer in-band
dialer string P9955555
dialer-group 1
async mode interactive
no fair-queue
no cdp enable
no shutdown
ppp authentication pap callin
ppp pap sent-username guest password mtu
!
ip nat inside source list 100 interface Serial0/1 overload
ip classless
ip route 0.0.0.0 0.0.0.0 Serial0/1
no ip http server
!
access-list 100 permit ip any any
dialer-list 1 protocol ip permit
!
line con 0
transport input none
line 2
autoselect ppp
modem InOut
modem autoconfigure type codex_3260
transport input telnet
transport output none
stopbits 1
speed 38400
flowcontrol hardware
line aux 0
line vty 0 4
exec-timeout 0 0
password ****
login
!