[wellylug] Only one of three ethernet cards works at a time

[Daniel Pittman]

On Sat, Jun 11, 2011 at 14:22, Jeff Hunt <jeffhunt90 at gmail.com> wrote:

> They were completely independent. I borrowed an extra switch from work
> and connected to a spare computer. I have since given up.

Sorry for not responding sooner.  Busy time at work. :)

> I have
> decided there is a fault with the machine that makes it incapable of
> distinguishing separate cards. I'm going to salvage the best of the
> gear out of this machine and put it onto a motherboard that can
> distinguish two ethcards (I only need two). Then I can set this up as
> a slave with one card.
>
> For your info I will send the ifconfig data. I did not set it up to
> look like this. I wouldn't know how to. What I did was set the three
> cards to ip 192.168.1. and then 10 or 11 or 12 to reflect eth0 eth1
> and eth2. What I ended up with was quite different which makes me
> realise that the network Manager can be quite independent of the real
> world. The network manager continues to show things as I expected to
> set them. I think that may be the point David is making.

I don't know, but for the record, using the same subnet on multiple
physically distinct ports (as you indicate you did) makes it much
stranger to work with than you might expect.  In future, might be
worth testing with independent IP networks on each port.

Also, matching the ifconfig output with a dump of the route table can
help in diagnosing things. :)

Daniel
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