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Re: CS8900A]
- To: (Andrew Lunn) <andrew dot lunn at ascom dot ch>
- Subject: Re: [ECOS] CS8900A]
- From: Gary Thomas <gthomas at redhat dot com>
- Date: Thu, 31 Aug 2000 05:37:34 -0600 (MDT)
- Cc: ecos-discuss at sourceware dot cygnus dot com, (Carl van Schaik) <carl at leg dot uct dot ac dot za>
This chip does not "know" its ESA (Etherenet Station Address) by default.
It has to be programmed in.
If you're building/designing the board yourself, you'll need to get one
from the appropriate authorities. Or, if the board will never see the
"real" internet, just make one up.
On 31-Aug-2000 Andrew Lunn wrote:
>> I have just got ecos running on my own design board using the AT91M40400
>> ARM processor. I have included CS8900A ethernet chip and I was wondering
>> if anyone knows how to find it's MAC address. We need to add it to the
>> dhcp server before it is allowed to use the network here.
>>
>> thanks
>
> Start it up so it makes a DHCP request. Use tcpdump to watch for the
> packet. There is a parameter you can pass to make it print the link
> level headers, ie the mac address. It will use the ip address 0.0.0.0
> which should make it easier to spot.
>
> Another option could be to look at the DHCP server. If it gets a
> request from a machine it does not know the mac address of it may
> print an error message with the MAC address.
>
> Andrew
>