[olug] Changing eth0 & eth1 around (in linux, of course!)

[Don E. Kauffman]

I wish it were that simple. The TLAN is built in and is therefoire not 
amenable to switching -- or am I missing something??

Don K.

On Friday 04 October 2002 10:32 pm, you wrote:
> I don't know the answer but I've had a hunch that swapping the physical
> locations of the cards might accomplish that.  However I haven't had the
> opportunity/need to test that hunch.
>
> On Friday 04 October 2002 09:35 pm, (Via wrote:
> > Howdy,
> >
> > I've had a problem with the networking on the linux box. I have a TLAN
> > (eth0) built in -- and it does not seem to be functioning anymore --
> > along with a D-link (eth1)  I spent all day yesterday off the net trying
> > to figure out how I could reconfigure the system to have the D-Link be
> > eth0 and assign eth1 to TLAN.  I ffinally noticed in the man page on
> > dhcpcd that I could change the interface that dhcp was "attached" to.
> > Hence I am now able to connect again!!
> >
> > Is there a way to flipflop the two interfaces? Here's what I've tried so
> > far.
> >
> > 1. Changed the aliases in modules.conf from this
> > alias eth0 tlan
> > alias eth1 8139too
> >
> > to this
> > alias eth0 8139too
> > alias eth1 tlan
> >
> > and rebooted the machine. dmesg showed that it was still regarding the
> > tlan as eth0.
> >
> > 2. Used the network configuration GUI in RH 7.2 to reconfigure the tlan
> > to eth1. Looked at the ifconfig output for eth0 and it shows tlan.
> >
> > 3. recompiled the kernel to compile the ethernet modules separately trom
> > the kernel. (I compiled the RH7.2  2.4.9-34 version of the kernel.)
> >
> > 4. On reboot, dmesg still shows the system as setting eth0 to the tlan.
> >
> > 5. I modprobed the respective modules into the kernel and found I had to
> > re-configure the routing tables. The RH network confiuguration GUI shows
> > that the tlan is eth1 and the D-Link as eth0. (I'm beginning to thiink
> > that particular tool bears only a faint resemblence to reality . . .)
> >
> > It's not a big deal if I can't get the tlan setup as eth1 now that I know
> > I can get the same results by having dhcp interface with the D-Link on
> > eth1 but it would be nice to know if I'm missing anything, So please make
> > suggestions or, at least, let me know if what I want to do isn't
> > possible.
> >
> > Thanks!
> >
> > Don Kauffman
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