> 
> What kernel are you using? The re driver is enabled in the GENERIC 
> kernel of both i386 as well as amd64, but if you're using a custom kernel,
> please make sure that
> 
> re*	at pci?	dev ? function ? 
> 
> isn't commented out. 
> 
> Alternatively, you could post the appropriate excerpt from dmesg.
> 
> FYI: the re-driver isn't new; it was present in 2.0 too.

I'm using the generic kernel: NetBSD 3.0.1 (GENERIC) #0.

excerpt from dmesg:

<snip> 8169 <snip> at pci0 dev 13 function 0 not configured.