Realtek 8111C?

[perryh at pluto.rain.com]

> ... I thought I'd try copying the driver from 7.1.  The module
> (if_re.ko) appears to load successfully at boot time, however
> the NIC is still not shown in dmesg and unavailable as re0.
> I admit I don't know if this should even work (7.1-compiled
> module on 6.3 kernel) ...

That would indeed not be expected to work.  Even a 7.1 module on
a 7.0 system would be hit-or-miss; across a major revision it's a
wonder it didn't panic.  You could try building the module from
the 7.1 source on 6.3.