Just a consideration.... As far as I know, ADSL uses PPPoA http://en.wikipedia.org/wiki/Pppoa. This is how the ISP can have you authenticate before giving you an IP address and consequently, you can be denied access before a 'connection' can be made.
Of course, the 'connection' is IP, which then runs over the ATM, as the name implies, Point to Point Protocol OVER ATM. This may not be the case in all installation all over the world, but is the case here in NZ. MAC addresses, being unique by RFC definition are the underlying magic in IP networks, but ATM magic happens at Layer 1 (connection), so no MAC address required and consequently, your ISP can identify you and have you authenticate before shelling out an IP address. I am not 100% certain, having not worked with ATM before, but I assume the only way to uniquely identify any ATM packet is by the switch port, which explains why a techie has to connect your new ADSL before it will work (as opposed to dial up that works from anywhere) and each provider requires access to the street cabinet. You can test this by taking your ADSL modem from one ISP to a friends house who belongs to another ISP. It does not work, hence the connection layer is the controlling authority. The articles on Wikipedia are well written and easy to understand with good links. I hope this helps. Gund ________________________________________ From: Evan Platt [e...@espphotography.com] Sent: Friday, 15 May 2009 14:34 To: users@httpd.apache.org Subject: Re: [us...@httpd] Fwd: Home Web Server At 07:05 PM 5/14/2009, you wrote: >Shirley, you jest... how else could an equipment identify itself >when turned on... I pressed COX CABLE after PURCASING DYNAMIC >BUSINESS CABLE connection, only to find that they identified your >EQUIPMENT before assigning a DYNAMIC IP from the pool... but already >HAD a PERMANENT EQUIPMENT IP. They gave me that one, and for the >past year I have enjoyed STATIC IP of 68.99.64.11 > >Try it! It's called a MAC address. /snip --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org " from the digest: users-digest-unsubscr...@httpd.apache.org For additional commands, e-mail: users-h...@httpd.apache.org
