Re: Two nics; only one works at a time
* Kent West <westk@acu.edu> [2004-01-05 22:03]:
> I've got a freshly installed Debian Stable box with two NICs, a 3c509
> and a 3c509c. In /etc/network/interfaces, I have them defined thusly:
>
> auto lo
> iface lo inet loopback
>
> auto eth0
> iface eth0 inet dhcp
>
> auto eth1
> iface eth1 dhcp
>
> When I (re)start networking, ifconfig shows both cards to be configured
> with all the proper numbers, but networking out is "iffy" (I haven't
> been able to pin down a pattern), and I can ping from a different subnet
> the eth1 card but never the eth0 card.
>
> If I comment out one of the cards (it doesn't matter which one) in
> "interfaces" and restart networking, I can then ping from the different
> subnet the card not commented out. In other words, both cards work, but
> only one at a time.
>
> I've also tried static IP addresses with essentially the same results.
>
> I've booted off a Knoppix 3.3 CD, and both cards worked as expected, and
> I was able to ping both cards from a different subnet.
>
> I actually wiped the drive and did a clean install of Stable, only to
> find the same results afterward. I also upgraded from the 2.2 kernel to
> 2.4.18-1-686; it made no difference.
>
> I've been googling all day trying to find an answer, and haven't hit the
> right answer yet. If this isn't solved by tomorrow, the decision makers
> are going to go with Redhat (because we're in a time crunch). Does
> anyone have any insight as to what I need to do to get both NICs working
> properly?
>
Kent,
What is the output of the 'route' command when you have the interfaces
up with and without knoppix?
Lou
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