Covenant
Premium,MVM
join:2003-07-01
England
| reply to aryoba
Re: Let's say A is down
I will assume this is a typical xdsl environment, so all users connect to a dslam. The dslam contains linecards that have modem ports, not like dialup modems, but modems none-the less. This means that there is a dedicated connection or one-to-one ratio of client's to modems. The linecard usually has LEDs that indicated various status conditions on the ports. If you are doing ppp, they can verify your username and ip address as well at the datalink layer.
Now I have one question for you aryoba  :
Why the interest in authentication and line security???? |
