Sounds like they all have the same Ethernet MAC address. On each unit,
run
ifconfig eth0
and you should get output like:
r...@arago:/# ifconfig eth0
eth0 Link encap:Ethernet HWaddr 00:08:EE:03:85:87
inet addr:10.0.0.181 Bcast:10.0.0.255 Mask:255.255.255.0
inet6 addr: fe80::208:eeff:fe03:8587/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:68440 errors:0 dropped:0 overruns:0 frame:38
TX packets:25533 errors:0 dropped:0 overruns:1 carrier:0
collisions:0 txqueuelen:1000
RX bytes:75131751 (71.6 MiB) TX bytes:4378782 (4.1 MiB)
Interrupt:33
Look at the HWaddr and make sure each one has a unique value. If they
all have the same value, I suspect you can set the MAC address by
passing the value from the bootloader to the kernel via the kernel
command line.
Also, when I have networking problems, I find wireshark very helpful to
figure out what is going on.
Todd
On Thu, 2010-04-29 at 22:43 +0800, shaofeng zhang wrote:
> Hi, all
>
> I developed several Network Cameras base on DaVinci DM6446 platform,
> but I found that when I connect them on the same network,such as
> 192.168.0.xxx
> When I power on them, I found that I can not ping them at the same
> time.
> That means when I make only one Camera working, I could ping it well, but two
> or more cameras works on, I could not ping them at the same timeļ¼
> Anyone could tell me about some problems about that? Such as,the
> conflict between MAC addr,
> the network heavy load, or some other hardware faults!
> Thank you~
>
> --
> Best Regards! zhangshaofeng
> @Xi'an JiaoTong University
>
>
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> Davinci-linux-open-source mailing list
> [email protected]
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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