[olug] Getting on the Net (was Computer Woes) -- Take 17.5 !

[Jon H. Larsen]

On Thu, 29 Dec 2005, Joe Gulizia wrote:

> Date: Thu, 29 Dec 2005 08:43:05 -0800 (PST)
> From: Joe Gulizia <jrguliz at yahoo.com>
> Reply-To: Omaha Linux User Group <olug at olug.org>
> To: Omaha Linux Users Group <olug at olug.org>
> Subject: [olug] Getting on the Net  (was Computer Woes) -- Take 17.5  !
> 
> I use Cox if that helps any (DHCP didn't work right
> off the bat).


- Did you power cycle your cable modem when you switched ethernet 
cards/computers?  

-Do you have a NAT router between your cable modem and your computer?

Look at your system to see if the card is being detected, from a terminal:

run /sbin/ifconfig

It should show eth0 and lo.  For instance:
eth0      Link encap:Ethernet  HWaddr 00:11:XX:XX:XX:XX

If the driver is working the HWaddr should show (aka MAC address).

Next, do a less /etc/modprobe.conf

look for:
alias eth0 modulename

where modulename will be the 'driver'

If you don't see eht0 (or eth1) the nic may not have been detected. 

e100 is Intel, 8139too is a realtec, tulip can be linksys/dlink (you get 
the picture)

once you know the module name, check to see if it's loaded by looking at 
your module list

/sbin/lsmod | grep modulename

Your output might look like this:
[~]$ /sbin/lsmod |grep e100
e100                   36545  0
mii                     5313  1 e100


If you don't see it, the module isn't loading for some reason.

You can look at your PCI bus with the command 

/sbin/lspci

Should look something like this:
[~]$ /sbin/lspci
00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM 
Controller/Host-Hub Interface (rev 02)
00:01.0 PCI bridge: Intel Corporation 82865G/PE/P PCI to AGP Controller 
(rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI 
Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI 
Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI 
Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI 
Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 
EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC 
Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE 
Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller 
(rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER 
(ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 
5200] (rev a1)
03:08.0 Ethernet controller: Intel Corporation 82562EZ 10/100 Ethernet 
Controller (rev 02)

This will confirm the card is being seen by the system.  You may need to 
look in the syslog (usually /var/log/messages) or dmesg to see any errors.

Since it's a VIA/AMD board, you probably won't see all the Intel 
references. :)

Try a difference network cable (sometimes its the simple stuff) or make 
sure both ends are plugged in securely.

Jon L.


-- 
Jon H. Larsen  - relayer -at- levania -dot- org
Operations Manager, Omaha Linux Users Group - http://www.olug.org/
AnimeSunday.org - http://www.animesunday.org/
ICQ#: 10412618 - http://www.levania.org/~relayer/
GPG/PGP Pubkey - http://www.levania.org/~relayer/relayerpubkey.txt