Quote:
Originally Posted by stripes
I know it's Saturday, but could you have a look at my no.2 question above, i.e. what does it prove? I am not really bothered about having a pop at ntl, it will only arise if I can't disconnect my G3 from the now growing circuitry.
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It means that there system, for some reason, is only willing to give an IP address to a device that matches the MAC address of the original machine (the G3).
Make sure that you write down that MAC address in case you ever need to enter it into the router again.
Other than that, you won't need the G3 anymore. The NTL system things your router is the G3 and will assign an address to it. The iMac gets its IP address from the router and the router, as you might guess, routes the data between the iMac and the NTL network.
Glad you've got it working. And, let me say it was a pleasure helping you out. You had an interesting problem and you were very clear about what you'd tried and what the results were.
Good luck,
Mark
---------- Post added at 20:14 ---------- Previous post was at 19:50 ----------
Quote:
Originally Posted by Dark Fiber
melevittfl - I don't accept any of your points...
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OK. Don't know what I can say if this is your stance, but I'll try...
Quote:
Originally Posted by Dark Fiber
In short, even if a machine is set up for "spoofing", I don't see how you can rule out responses (that wouldn't involve the OS software) to ISP interrogation with the "hard" MAC address unless the computer's MAC hardware has some writable registers which for normal use it wouldn't need.
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Well, the computer's hardware does have "writable registers." The physical hardware has a bit of programmable data storage that holds configuration data.
The OS is capable of changing the configuration of the ethernet controller by changing the configuration data. The ability to change the MAC address uses exactly the same mechanism as setting the ethernet controller to full or half duplex and telling it to auto-negotiate the link speed or setting a specific one. It's stored in a re-writable EEPROM that's part of the ethernet controller.
If you don't believe me, there's Wikipedia:
From
http://en.wikipedia.org/wiki/MAC_address
"A locally administered address is assigned to a device by a network administrator, overriding the burned-in address."
Quote:
Originally Posted by Dark Fiber
I would like to hear from any networking guru and any Mac hardware guru about my points.
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You mean, other than me?
Cheers,
Mark