First off, I apologize if this is in the wrong forum...
I have a client (I just do desktop support, not really network support, but they asked me anyway) who has a Cisco Pix 501 firewall on their network, and it has a connection to a USR 5686 modem on its console port. To my knowledge, this is so that their firewall vendor can dial into their PIX and make configuration changes.
Every once in a while, the clients can hear a voice coming from the modem alone the lines of, "we're sorry, the number you have dialed...." etc. So it seems to me that the modem attempted to dial out and the connection failed. The problem is that no one they know of initiated any outbound call.
I don't know anything about PIX's, but do they, by default, have any sort of configuration that tells them to dial the modem for any reason? The site is broadband connected and although their network vendor occassionally dials IN, no one at this site ever dials OUT.
Should they be concerned about a hacker?
Thanks much!
I have a client (I just do desktop support, not really network support, but they asked me anyway) who has a Cisco Pix 501 firewall on their network, and it has a connection to a USR 5686 modem on its console port. To my knowledge, this is so that their firewall vendor can dial into their PIX and make configuration changes.
Every once in a while, the clients can hear a voice coming from the modem alone the lines of, "we're sorry, the number you have dialed...." etc. So it seems to me that the modem attempted to dial out and the connection failed. The problem is that no one they know of initiated any outbound call.
I don't know anything about PIX's, but do they, by default, have any sort of configuration that tells them to dial the modem for any reason? The site is broadband connected and although their network vendor occassionally dials IN, no one at this site ever dials OUT.
Should they be concerned about a hacker?
Thanks much!