protecting FXO ports

Discussion in 'Cisco' started by Dan Lanciani, Nov 8, 2008.

  1. Dan Lanciani

    Dan Lanciani Guest

    By default if you have an FXO port with a dial-peer pointed to it any
    device anywhere can make a SIP or H.323 request and use your outgoing
    line to make calls. How does one configure IOS to challenge (on SIP)
    and/or do the equivalent (on H.323) such requests for authentication?
    The authentication parameters on POTS dial-peers appear to be used
    to answer challenges to the router in connection with FXS registration.

    Dan Lanciani
    [email protected]*com
    Dan Lanciani, Nov 8, 2008
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