network

Cisco reverse console

Use AUX port on cisco device as terminal server for other device

Cisco reverse console

Config AUX for reverse console

line aux 0 
      modem InOut 
      transport preferred telnet 
      transport input all 
      stopbits 1

Connect to AUX

Show line to see AUX port number

Router#show line 
   Tty Typ     Tx/Rx    A Modem  Roty AccO AccI   Uses   Noise  Overruns   Int 
      0 CTY              -    -      -    -    -      0       0     0/0       - 
      1 AUX   9600/9600  - inout     -    -    -      2       0     0/0       - 
*     2 VTY              -    -      -    -    -      8       0     0/0       - 
      3 VTY              -    -      -    -    -      1       0     0/0       - 
      4 VTY              -    -      -    -    -      0       0     0/0       - 
      5 VTY              -    -      -    -    -      0       0     0/0       - 
      6 VTY              -    -      -    -    -      0       0     0/0       -

AUX is on Tty 1
Console port is 2000 + Tty
AUX on port 2001 (2000 + 1(AUX))

Telnet on port AUX to get console

telnet <router ip> <aux port>

Disconnect reverse console

clear line aux 0