* 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