> "Acer Labs M5263 LAN" rev 0x50 at pci0 dev 27 function 0 not configured
this definitely does not look like a realtek; some references seem to suggest a tulip. you could try to see if this does anything (try both de(4) and dc(4) in your kernel), but no high hopes. btw is this some ancient motherboard or is it new?? Index: if_de.c =================================================================== RCS file: /cvs/src/sys/dev/pci/if_de.c,v retrieving revision 1.88 diff -u -p -r1.88 if_de.c --- if_de.c 25 Mar 2006 22:41:44 -0000 1.88 +++ if_de.c 28 Mar 2006 05:57:34 -0000 @@ -4590,6 +4590,9 @@ tulip_pci_probe( { struct pci_attach_args *pa = (struct pci_attach_args *) aux; + if (PCI_VENDORID(pa->pa_id) == PCI_VENDOR_ALI && + PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ALI_M5263) + return 2; if (PCI_VENDORID(pa->pa_id) != DEC_VENDORID) return 0; if (PCI_CHIPID(pa->pa_id) == CHIPID_21040 Index: if_dc_pci.c =================================================================== RCS file: /cvs/src/sys/dev/pci/if_dc_pci.c,v retrieving revision 1.52 diff -u -p -r1.52 if_dc_pci.c --- if_dc_pci.c 6 Nov 2005 19:25:21 -0000 1.52 +++ if_dc_pci.c 28 Mar 2006 05:58:03 -0000 @@ -125,6 +125,10 @@ dc_pci_match(parent, match, aux) struct pci_attach_args *pa = (struct pci_attach_args *)aux; struct dc_type *t; + if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ALI && + PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ALI_M5263) + return (1); + /* * Support for the 21140 chip is experimental. If it works for you, * that's great. By default, this chip will use de.