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Date:      Sun, 23 Sep 2001 15:28:59 -0400
From:      Jon-Erik Lido <jlido@goof.com>
To:        freebsd-questions@freebsd.org
Subject:   SiS 900 ethernet MAC address all zeros (me too)
Message-ID:  <20010923152858.C27640@goof.com>

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Back in December/Januare Oliver Crow mentioned a problem with his
onboard SiS 900 ethernet reporting a MAC address of all zeros.

I have the same problem, but I haven't been able to work around it.
The mainboard uses the SiS 735 chipset
FreeBSD reports:

sis0: <Sis 900 10/100BaseTX> port 0xdc00-0xdcff mem 0xcffdd000-0xcffddfff irq 10 at device 3.0 on pci0
sis0: Ethernet address: 00:00:00:00:00:00
sis0: MII without any PHY!
device_probe_and_attach: sis0 attach returned 6

Unlike Oliver, I can't figure out how to get the device to work.  Dispite
having an address of all zeros, networking worked for him.  Later he
mentioned getting a tip from Ben Hochstrasser on using "ifconfig lladdr"
to force a MAC address like:

ifconfig dc0 lladdr 60:00:00:00:00:00

(I assume that this example was for the DEC ethernet adapters and not
the SiS 900.)

Adding a similar lladdr to my ifconfig_sis0 line in rc.conf seems to
have no effect.

How do I get this device to work?

-Jon


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