I just bought a AP9211 for my lab, so that I don’t have to turn on all the routers before I go to work or call someone to turn them all on. Unfortunately, the AP9211 Masterswitch does not have a manual or instruction how to configure it.
Fortunately, my routers have AUX port, and the AP9211 have a male serial interface. The only way for me to configure the AP9211 is either through Telnet or console.
My first attempt was using Telnet. What I did was, I took the AP9606 out and copied the MAC Address. Then on my Macbook terminal, I used the command arp -s ip-address mac-address to assign a static IP address associated with the AP9606 MAC address. Unfortunately, I still could not Telnet nor use the web GUI. Therefore, I have to use the console.
Now, to reverse Telnet to the AP9211, we need a router with AUX port and a Serial console cable (rollover) with an RJ45 connector at the other end. I used Cisco console cable.
I used my 2511 router and configured its AUX port:
! The speed is for the baud rate that AP9211 supports.
line aux 0 modem InOut no exec transport input all transport output none speed 2400
! Then create a loopback for your reverse Telnet.
interface Loopback1 description Reverse Telnet Loopback ip address 10.0.0.1 255.0.0.0
! After creating a loopback and configuring the router’s AUX port, go back to enable mode and use the command show line and look for
! the line your AUX is using.
2511show line Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int 0 CTY - - - - - 0 0 0/0 - 17 AUX 2400/2400 - inout - - - 0 0 0/0 -
! From here we should be able to reverse Telnet to the AP9211.
! To telnet to the AP9211, we have to user 2000 + the line number in this case the line number is 17. The port number is going to be 2017.
2511#telnet 10.0.0.1 2017 Trying 10.0.0.1, 2017 ... Open THIS IS MY ACCESS SERVER User Access Verification Username:
! Now, just type in the username and password. The default username/password is apc/apc. Unplug and replug the AP9211 then press the reset button for 5 seconds or until the AP9606 NIC’s turn off and back on. Release the reset button then enter the default username/password. Once you get in, you can change the settings.