Couldn't add NIC card

sakthi.s · 12-03-2006, 05:58 AM

Dear All

I have redhat linux 9 , alrdy have two ethernet cards one is connecting to my internet gateway and otherone is connecting to my LAN. I want to add one more NIC, after fixing the working lan card into PCI slot , linux server detecting this new hardware, and i am configuring the same. But in network devices couldn't find eth2 ( eth0 - Lan, eth1- internet gateway). If i try to add manually also it's not getting activated... but in hardware list i am able to see the 3rd NIC card.

So i understood card is getting detected and configured, but i am not able to see eth2 anyware.... as i want to configure static routing for one more network.

Can anyone help me

Thanks in advance

Sakthi

osvaldomarques · 12-03-2006, 06:35 AM

Hi sakthi.s,

On RH distribution there is a program called netconfig; you should use it as below:

Code:

netconfig -d eth2

You must be root to do it. Don't fill the Gateway field as it is the default gateway for the system.

This program will create a config file "/etc/sysconfig/network-scripts/ifcfg-eth2", which will be used by "/etc/rc.d/init.d/network" script to configure the network.

amitsharma_26 · 12-03-2006, 07:48 AM

Hey sakthi,

Create a config file like /etc/sysconfig/network-scripts/ifcfg-eth2 (copy paste from eth0 or 1) & prior to it fix this lan card in any other box(windows also), note down the mac address & copy paste that into the ifcfg-eth2 over the existing mac of other device.

Do a service network restart & its all done.

sakthi.s · 12-04-2006, 09:26 AM

Hi

Even i tried to configure my 3rd NIC by using netconfig -d eth2 , able to configure but if i go to network device control and see the status of that card it's showing as inactive.

but eth2 starting when i reboot the server. like

starting etho - ok
starting eth1 - ok
starting eth2 - ok

but in network device control it's showing as inactive.

Even i tried Mr.Amit procedure by coping ifcfg-eth0 to ifcfg-eth2 and changed the ipaddress as per my requirements, but i don't how to put mac address in that config files. Can u give me exact syntax.

But one thing i noticed , after fixing the 3rd NIC card, if i go to network device control and if try to see the configuration for eth0 or eth1 i am getting the following msg before going that Card properties.

" eth1 has an alias to module e100 in module.conf,instead of currently loaded module 8139too "

Pls. help me

amitsharma_26 · 12-04-2006, 09:36 AM

Can you post the output of

Code:

cat /etc/sysconfig/network-script/ifcfg-eth0
cat /etc/sysconfig/network-script/ifcfg-eth1
cat /etc/sysconfig/network-script/ifcfg-eth2

&

Code:

lspci | grep Ethernet

&

Code:

cat /etc/modules.conf or cat /etc/modprobe.conf

The format for MAC address in network scripts is like

Code:

HWADDR=00:0C:F1:EC:3D:EA

sakthi.s · 12-04-2006, 10:25 PM

[root@ismartblr2 network-scripts]# cat ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=none
IPADDR=192.168.1.5
NETMASK=255.255.255.0
USERCTL=no
PEERDNS=no
TYPE=Ethernet
NETWORK=192.168.1.0
BROADCAST=192.168.1.255

[root@ismartblr2 network-scripts]# cat ifcfg-eth1
DEVICE=eth1
BOOTPROTO=none
ONBOOT=yes
USERCTL=no
PEERDNS=no
TYPE=Ethernet
IPADDR=59.144.40.173
NETMASK=255.255.255.0
NETWORK=59.144.40.0
BROADCAST=59.144.40.255
GATEWAY=59.144.40.1
[root@ismartblr2 network-scripts]#

[root@ismartblr2 network-scripts]# cat ifcfg-eth2
DEVICE=eth2
ONBOOT=yes
BOOTPROTO=none
IPADDR=192.168.100.251
NETMASK=255.255.255.0
USERCTL=no
PEERDNS=no
TYPE=Ethernet
NETWORK=192.168.100.0
BROADCAST=192.168.100.255
[root@ismartblr2 network-scripts]#

[root@ismartblr2 network-scripts]# lspci | grep Ethernet
00:10.0 Ethernet controller: D-Link System Inc RTL8139 Ethernet (rev 10)
02:05.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 05)
[root@ismartblr2 network-scripts]#

[root@ismartblr2 network-scripts]# cat /etc/modules.conf
alias eth0 8139too
alias eth1 e100
alias scsi_hostadapter sym53c8xx
alias usb-controller usb-uhci
[root@ismartblr2 network-scripts]#

osvaldomarques · 12-04-2006, 10:32 PM

Hi Sakthi,

Your lspci list shows only 2 nics. Where is the 3rd which you are trying to install?

sakthi.s · 12-10-2006, 05:37 AM

Sorry , here is the correct output lspci

lspci | grep Ethernet
00:0e.0 Ethernet controller: Realtek Semiconductor Co., Ltd RTL-8139/8139C/8139C+ (Rev 10)
00:10.0 Ethernet controller: D-Link System Inc RTL8139 Ethernet (rev 10)
02:05.0 Ethernet controller: Intel Corp. 82557/8/9 [Ethernet Pro 100] (rev 05)

osvaldomarques · 12-10-2006, 07:31 AM

Hi Sakthi,

Every time more than one nic with the same chipset are plugged onto the system, it's almost impossible to determine which of each must be the desired ethernet port number.

On your "12-04-06, 01:26 PM" post you showed an alert message:

Code:

eth1 has an alias to module e100 in module.conf,instead of currently loaded module 8139too

That means that when the kernel loaded the 8139too driver, it discovered both nics and associated it with eth0 and eth1.

I think that you could only decide on two configurations:

Code:

eth0 - e100
eth1 - 8139
eth2 - 8139

or

Code:

eth0 - 8139
eth1 - 8139
eth2 - e100

Try to change the alias on /etc/modules.conf to

Code:

alias eth2 e100

and see if the 3 interfaces work. Then, if you prefer, you can change the order, placing the e100 as the first, editing the modules.conf again as below

Code:

alias eth0 e100
alias eth1 8139too