AUX/Consol ports

Apr 13, 2006 5 Replies

Hi



please help my to solve the problem!



I have 2 routers, trougt console cabel I have connect router1 (aux port) to router2 (console port) I want do telnet to router1 and connect to router2 consol port please help my configure aux port



Regards George.



snipped-for-privacy@gmail.com schrieb:

George,

in router1 you need to set the aux-port to have the same settings as the console line of router2 (9600baud 8bit 1stop noparity is std)

this is done with

line aux 0 stopbits 1 databits 8 speed 9600 parity none

you want to make sure that console output of router2 is not interpreted as login-attepmt to router1 so you add

line aux 0 no exec

eventually the aux-port was used to hold a ppp-modem connection, and there is still a async-interface configured ... this needs to be deleted. To find out the name ... do a

show line

the output should contain one line with Typ=AUX and a certain Tty number.

do a no interface Async XXX where XXX is the Tty-number of the output of "show line".

Now, your AUX-line is prepared to be used. Connect to your local AUX-line by

- telnetting to router1 and then (within router1) telnet ROUTER1_IP 2000+XXX ROUTER1_IP is router1's IP-address 2000+XXX is Number XXX plus 2000 so ... if XXX was 5 then use 2005

- If no accesslist is denying it telnet router1 2000+XXX from elsewhere in your network. (This should connect the telnet to the AUX-port.)

Remember one other thing: for the connection from router1-AUX to router2-CON ... you need a _rollover_ cable !!! not a straight cable, and not a LAN-crossover cable.

(rollover is 1-8 2-7 3-6 4-5 5-4 6-3 7-2 8-1) (straigh is 1-1 2-2 3-3 4-4 5-5 6-6 7-7 8-8) (crossover is 1-3 3-1 2-6 6-2)

hope this helps ... Rainer

oops, forgot this ... add a

line aux 0 transport input all

Rainer

Hi Rainer,

First of all thank you for your respond

I hawe don this step

  1. line aux 0 stopbits 1 databits 8 speed 9600 parity none no exec
  2. connect router1 aux port to router2 consol port via rollover cable sh line Tty Typ Tx/Rx A Modem Roty AccO AccI Uses Noise Overruns Int 0 CTY - - - - - 0 0 0/0 - 1 AUX 9600/9600 - - - - - 0 11170 0/0 -
  • 2 VTY - - - - - 26 0 0/0 - 3 VTY - - - - - 2 0 0/0 - 4 VTY - - - - - 0 0 0/0 - 5 VTY - - - - - 0 0 0/0 - 6 VTY - - - - - 0 0 0/0 - 1/00 Digital modem - - - - - 0 129 0/0 - 1/01 Digital modem - - - - - 0 129 0/0 - 1/02 Digital modem - - - - - 0 125 0/0 - 1/03 Digital modem - - - - - 0 124 0/0 - .................................. 5/107 Digital modem - - - - - 0 104 0/0 -

Line(s) not in async mode -or- with no hardware support:

7-215, 600-647 I cane not find interface async xxx :(

George

George,

"show line" shows your aux-line as tty-1 therefore the corresponding async-interface woule be "interface async 1" ... if this interface does not exist in your config everything is already in order. If it exists, you have to delete it with

conf term no int asy 1 exit

Now, try a telnet your_routers_ip 2001

your_routers_ip is the ip-address of one of your local interfaces (except NUL).

Rainer

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