problem in pppd working with radius

Discussion in 'Network Routers' started by Eric Tao, Mar 9, 2010.

  1. Eric Tao

    Eric Tao Guest


    Please correct me if I am posting to the wrong group.

    I am trying to set up a vpn service using radius+mysql+pptpd+pppd, so
    far everything is right that user in table radcheck can login using the
    config'ed password. Now I want to control the behavior of a ppp
    connection from the server side, e.g. forcing disconnecting a user.

    pptpd is not a decent NAS that supports CoA (correct me?). So I can't
    use radclient to send a CoA disconnect message.

    Then people say using Acct-Interim-Interval and Session-Timeout in
    radius accounting reply message to inform the NAS to timeout a
    connection. As a start, I tried to set the Acct-Interim-Interval value
    to 5 secs in auth reply message. I can see from the log that the
    Acct-Interim-Interval message is successfully sent but seems pppd-radius
    plugin doesn't respect it.

    Am I doing right?

    I failed to find the whole list of attributes that pppd-radius supports.
    Can anyone please point me to?

    Or if pptpd/pppd/pppd-radius combination is incapable to do simple CoA,
    what alternative NAS should I turn to?

    Thank you!
    Eric Tao, Mar 9, 2010
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