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Configuring Dialin connectivity using a modem on router aux port

Discussion in 'Networking' started by sabirpoonoor, Nov 20, 2012.

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  1. sabirpoonoor

    sabirpoonoor Thread Starter

    Nov 20, 2012
    I have a cisco 1941 ISR router and I am trying to configure a router to allow a modem for “Offband or Out of band” access.

    Below is the configuration on Aux port on Line (n):

    line aux 0
    login local
    modem InOut
    transport input all
    speed 115200
    flowcontrol hardware

    I have US Robotics 56k Faxmodem which is connected to aux port of router and I am using USB dialup modem with my laptop to dailin to the router which is connected to a US Robotics Faxmodem. Then I have accessed my USB dialup modem throught HyperTerminal and I can issue all “at” commands and to dialin to the modem I have used the following command
    atdt914011111111 (atdt followed by country code, area code and landline number)

    Once I issue the above command it give me message “Connected” and after this I just get a flashing cursor. I cannot do anything nor will it display a username login prompt.
  2. zx10guy

    zx10guy Trusted Advisor Spam Fighter

    Mar 30, 2008
    Sorry. Can't provide any help here on using the Aux port of the ISR. I know it can be done as I've heard others have done it. On deployments I've done, we used a Raritan console server which has a built in modem for POTS line OOB connectivity. The nice thing is the Raritans are simple to configure and have a proven track record. In addition, you can get various models that support multiple devices from serial/console type access to KVM.
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