Does this little bit of information maybe help us???
I have no clue and a total noob, so the pro's can have a look

Thanks.
> > I have an Intel 82566DC NIC, which is a fairly recent card, and I
> > can't find any drivers for it.
>
> Hmm, according to bug 6480859 / 6482530, opensolaris (build 58 or newer)
> does support the Intel 82566DC NIC:
>
>
http://bugs.opensolaris.org/bugdatabase/vi...?bug_id=6480859>
http://bugs.opensolaris.org/bugdatabase/vi...?bug_id=6482530>
>
> > Has anyone put this card to work?
> > If not, I believe the driver e1000g or iprb shouldn't need many
> > changes to work with this NIC.
>
> The 82566DC seems to be an Intel gigabit ethernet controller, so
> e1000g would be the correct driver...
>
> I think the e1000g driver has a compiled in pci device id table,
> and doesn't easily work with "unknown" variants of the Intel
> gigabit hardware.
>
>
> > I never worked with OpenSolaris source
> > code, so I would thank some directions to try something out.