Can't activate eth0 network connection

Greg_Wilson at aotx.uscourts.gov Greg_Wilson at aotx.uscourts.gov
Wed Dec 6 14:41:13 UTC 2006


You might have your cable plugged into eth1 instead of eth0.


Greg Wilson
Information Technology Specialist
Systems Deployment and Support Division




Dave Martini <martini at mrpeabody.llnl.gov> 
Sent by: redhat-list-bounces at redhat.com
12/04/2006 11:30 AM
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Subject
Can't activate eth0  network connection






I have an HP Proliant DL385 with RHEL 4.0 ES on it.

I can't get the network device to activate to where I can ping the 
machine or ping other machines from it.

I noticed when I run ifconfig it says

UP BROADCAST MULTICAST  MTU:1500  Metric:1

but it doesn't have the word RUNNING in the output like it does on my 
SunFire X4200 which does have an active network connection and looks 
like this

UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

Shouldn't it say RUNNING?

I also noticed when running ethtool eth0 that it says
Link detected: no

I've verified that the network cable is good because I switched it from 
my SunFire which is working and which is connected to the same gigabit 
hub.

I ran the netconfig utility on the HP and entered the IP address and 
netmask and nameserver and default gateway and DNS info. I have the 
machines DNS name registered with my local DNS servers. My 
/etc/nsswitch.conf file has the word files then dns for the hosts line.

Is there something special on the HP I need to do to activate the 
network interface? This machine has two nic connectors on the back 
labeled 1 and 2. I have the cable plugged into 1 and on the front it 
shows that there is a network link because the green light is on.

THank you.
Dave Martini
LLNL

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