On Fri, 11 Feb 83 14:22:20 -0500, R. Geoffrey Newbury wrote:

>DSL 'modems' don't seem to have NICs or MACs.
>Early cable modems weren't NIC's neither.
>I don't think if was ever a network necessity to 'call in' the MAC
>address. If the network could see the NIC, it could determine the MAC
>address. That was probably an anti-piracy measure:

Precisely.  When I got my DSL, quite a number of years ago, my MAC
was 'registered' with my ISP.  This was to prevent me from having
multilple machines using the network.  Then I discovered NAT.  Now
I have a static addr and the ISP doesn't care  as long as I don't
hog bandwidth.  If I was running a server that was very active then
they would start talking to me about my terms of usage, or whatever
it is called.

Jon



 
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