Hello pressy,

Yes, the tech specs of the NIC states that only Solaris10 is supported:
Sun PCI-Express Dual Gigabit Ethernet Adapter - Tech Specs

But in the downloads page, it seemed to me that the driver does exist:
Sun Downloads

I chose "GigaSwift Ethernet Driver (1.135) 1.0 Update":
The GigaSwift Ethernet Drivers software includes the 1.135 CE Driver which supports the following hardware products:
Sun Dual Gigabit Ethernet and Dual SCSI/P adapter
Sun FastEthernet and Dual SCSI/P Adapter
GigaSwift Ethernet Adapter
GigaSwift Ethernet Adapter Compact/pci Adapter
Quad GigaSwift Ethernet Adapter

And in the "platform selection" section appears Solaris 9, so I installed this driver. Is it the wrong driver?

Besides, I thought that OBP was in a lower level of execution than the OS, so I assumed that the driver is only needed when Solaris9 has been booted, and that at ok-prompt level you just interact with the hardware, no matter if the driver is installed or not. Am I wrong? Does the show-nets command need the driver to be installed before being able to recognize the NIC card?

Thank you very much for you quick response

Ismael