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RTL8019AS, changing MAC

 
 
Trix
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      04-30-2004, 10:16 AM
Hello,

I have got a computer with RTL8019AS NIC.

I need to permanently change MAC address
reprogramming it in EEPROM.

I have got Donald Becker`s ne2k-diag,
but it doesn`t have option which would make
me able to change MAC address.

How to aim my purpose?

Thanks in advance,
Trix.


 
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svilen
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      05-01-2004, 04:24 PM
> Hello,
>
> I have got a computer with RTL8019AS NIC.
>
> I need to permanently change MAC address
> reprogramming it in EEPROM.
>

I have written a test program for my RTL8139. And I have successfully
changed its MAC. If you want to experiment I'll send it to you. But
have the following in mind:
- it runs under Windows
- you have to enter manually the I/O port of the card (looking it from
the device manager) because I do not know how to detect it myself.
- it's actually EEPROM reader/writer so I recommend you to change only
the six bytes that represent your MAC, otherwise your card may stop
working.
- there's a checksum in the EEPROM that I do not update but that does
not stop the card from working (at least my card).
- not guaranteed to work at all; but you can try only reading before
you dare writing the new MAC.

- Svilen
 
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