Re: ethernet interface problem with kernel 2.6.14 on MPC8343E

["Luong Ngo" <luong.ngo@gmail.com>]

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Hi,

It is working now. Thanks for the help. I am just curious that linux kernel
does not know 1 interface's connection is down and check the other interface
to see if it can reaches the destination with other interfaces?

Thanks,
l.ngo

On 11/7/06, Andy Fleming <afleming@freescale.com> wrote:
>
>
> On Nov 6, 2006, at 17:51, Luong Ngo wrote:
>
> > Hello,
> >
> > I am having a problem with the interfaces eth0 and eth1 when
> > running 2.6.14 kernel on a board with MPC8343E. The problem I
> > encounters is only one of the eth interface is really working. Only
> > the one that is configured first, using "ifconfig eth[0/1]
> > 192.168.1.1 netmask 255.255.255.0" can ping and be pinged from
> > another host. I wonder if there is setup difference between the
> > TSEC1 and TSEC2 or this is not related to hardware but rather
> > something in the kernel. When I ping from other host, from within
> > the Gianfar driver, I can see the packet is received on both
> > interfaces but only one responds. When pinging from the system
> > itself, only the working interface sending out packet, the other
> > interface does not send anything. Please advise me what I am doing
> > wrong or missing.
> >
>
> It sounds like both work for you, but not at the same time?
>
> If you set them both to the same IP address, it won't work.
> Actually, it won't work if you set them to different IP addresses on
> the same subnet (as defined by their netmasks).
>
> I think you are trying to get Linux to do something that it doesn't
> do.  Try setting them to different IP addresses, like 192.168.1.1 and
> 192.168.2.1
>
> Andy
>

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