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Posted by hat-trick on August 10, 2008, 1:51 pm
On Jun 15, 3:02=A0pm, albrechtuhlm...@gmx.net wrote:
> Hello,
>
> for a networking application, I need to set the source MAC address
> individually
> for every IP packet that I send. Is this possible at all? I know that
> the MAC address
> can be changed in software but per IP frame? On the other hand, every
> layer 2
> switch does exactly this, so it must be possible in principle. Do I
> need special
> network controller chips that support this feature? All datasheets of
> ethernet
> controllers I got hands on allow you to program the MAC address but it
> is then
> automatically filled in for every packet.
>
> Also, how would the programming side look like? I presume I must use
> RAW sockets
> but in which field would I set the source MAC address?
>
> Thanks,
>
> Albrecht
Albrecht,
For what practical, benevolent purpose would you ever need to do
this!?
hat trick
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