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Re: [F8] Seems I lost my network connection...



Daniel B. Thurman wrote:

On Tue, 2008-01-22 at 15:40 -0800, Daniel B. Thurman wrote:
I must have installed something that now prevented my
network connection to work.  I do not know where to begin
to resolve this issue.

I had a hard time initially to compile/build the module for
my onboard network but I did have it running and it was
really great.

But somehow, I have lost it.

Can someone give me advice how to go about troubleshooting it?

What I do know is that the network daemon is running, it correctly
loaded the nic module, ipconfig shows both eth0 and lo:

ifconfig:
==================================================================
eth0  Link encap: Thernet  Hwaddr: 00:1B:FC:EC:4B:27
        inet addr: 10.1.0.8 Bcast:10.1.0.255 Maask: 255.255.255.0
        UP BROADCAST MULTICAST  MTU: 1500 Metric: 1
        RX packets:0 errors:0 dropped:0 overruns:0 frame:0
        TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:1000
        RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
        Memory:dffc0000-e0000000

lo      Link encap:local loopback
        inet addr:127.0.0.1 Mask:255.0.0.0
        inet6 addr: ::1/128 Scope:Host
        UP LOOPBACK RUNNING MTU:16436 Metric:1
        RX packets:11997 errors:0 dropped:0 overruns:0 frame:0
        TX packets:11997 errors:0 dropped:0 overruns:0 carrier:0
        collisions:0 txqueuelen:0
        RX bytes:4997217 (4.7 Mib) TX bytes:4997217 (4.7 Mib)
==================================================================

I checked /etc/resolve.conf, system-config-network and everything
is in order.
What makes you think that you have lost your network? ifconfig shows
that networking is running and has an IP address (10.1.0.8).

We'll need some additional information:

* How do you have your network configured? Are you using a static IP
address or DHCP to assign and address?

I am using static IP address of 10.1.0.8

* What gave you the impression the networking is not working?

+ I see on my switch no "live" network connection - so it
  appears that the NIC is not active.

Well, if the link light isn't lit that is the first problem that needs solving. Without it, nothing else will work.

+ I cannot ping a local server
+ I cannot access an Internet site like www.fedora.org
+ gkrellm shows no activity
+ nslookup finds no DNS server

Expected.

I am able to ping localhost or the hostname (resovled via /etc/hosts)
itself.  Just cannot ping remote sites.

Also expected. Pinging the localhost or hostname doesn't involve any hardware. So, still need to resolve the link light not being on.

/sbin/route:
================================================================
Kernel IP routing table
Destination  Gateway    Genmask       Flags Metric Ref Use Iface
10.1.0.0     *          255.255.255.0 U     0      0   0   eth0
link-local   *          255.255.0.0   U     0      0   0   eth0
default      10.1.0.200 0.0.0.0       UG    0      0   0   eth0
================================================================

It doesn't make any difference, but it would be nice to see the output of "route -n".

Additionally, I checked:
+ lsmod | grep atl2
  alt2   32024 0
+ cat /etc/modprobe.conf
  alias eth0 atl2

What kind of hardware is your NIC?

Have you tried the following?

1.  Stop your network  (service network stop)
2.  rmmod alt2
3.  modprobe atl2
4.  Start your network
5.  Check /var/log/messages for any errors


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