<br><font size=2 face="sans-serif">Hi, Thanks for your kind reply, Yes
i have used different * IP Subnets*</font>
<br>
<br><font size=2 face="sans-serif">The IPs and subnet details I use is</font>
<br><font size=2 face="sans-serif">1. eth0(configured through u-boot env
settings)->> 192.168.174.231 and subnet is 255.255.255.0 </font>
<br><font size=2 face="sans-serif">2. eth1(configured after kernel is up)-->
192.168.33.64 and subnet is 255.255.248.0</font>
<br>
<br><font size=2 face="sans-serif">Even i tried by connecting second eth
to host PC using cross cable as a stand-alone network but even "ping"
did not work.. </font>
<br>
<br>
<br>
<br><font size=2 face="sans-serif">Thanks & Regards<br>
MANJUNATH AM<br>
Senior Software Engineer<br>
Emsys<br>
Larsen & Toubro Limited<br>
Mysore-570018<br>
Mobile:9886375926<br>
</font>
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<br>
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<td width=40%><font size=1 face="sans-serif"><b>Vitaly Bordug <vbordug@ru.mvista.com></b>
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<p><font size=1 face="sans-serif">02/20/2007 09:30 PM</font>
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<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">Alex Zeffertt <ajz@cambridgebroadband.com></font>
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<div align=right><font size=1 face="sans-serif">cc</font></div>
<td><font size=1 face="sans-serif">Manjunath AM <Manjunath.AM@Lntemsys.com>,
linuxppc-embedded@ozlabs.org</font>
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<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: enabling two eths</font></table>
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<br><font size=2><tt>On Tue, 20 Feb 2007 15:31:54 +0000<br>
Alex Zeffertt <ajz@cambridgebroadband.com> wrote:<br>
<br>
> <br>
> Manjunath AM wrote:<br>
> > <br>
> > Hi,<br>
> > <br>
> > We are using MPC8272 based target board, we use montavista Linux
version <br>
> > 2.6.10 kernel image (with NFS enabled) to our target board,<br>
> > <br>
> > Our board has 2 FCCs (eth0 and eth1). bot the eth's works
perfectly <br>
> > when we use them independently, but when we are trying to enable
second <br>
> > one after the kernel is up using linux command "ifconfig
eth1 <br>
> > 192.168.33.64 up"(IP address)nothing is working.<br>
> > Please suggest how to enable second eth (either 0 or 1) once
the kernel <br>
> > is up with NFS file system<br>
> <br>
> <br>
> Have you made sure that eth0 and eth1 are on *different* IP subnets?<br>
> If they are on the same subnet, or intersecting subnets, your routing<br>
> will get confused.<br>
> <br>
It depends :)<br>
<br>
I used to test functionality such a way to have two enets in same subnet,
then ifdown one of them.<br>
<br>
At least with mvista RFS, one enet handles NFS, other is up but all
the packets are routed to it via<br>
the first one. And when the first one got ifdown, routing switches to the
remaining enet...<br>
-- <br>
Sincerely, <br>
Vitaly<br>
</tt></font>
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