Redhat 8 doesn`t search second network card

[edita]

Hi!
I had one network card and everything worked fine. I add second network card and linux moved configuration of the first one on the second one and works with the second right, but it doesn`t search the first one.
Have you got any sugestions?
Thanks in advance.

 

[pansophic]

I had a similar situation with two identical network cards, once I put in a different brand (req'd a different driver) I was OK.

But I think that you can solve this by specifying the MAC address of the card in the network configuration.

Select the device that you wish to configure (eth0 or eth1) and press the Edit button.
Select the Hardware Device tab and then check the Bind to MAC Address box and press the Probe button.
Select the MAC address for this interface.

Do it all over again for the other interface and then you should have no problems.


pansophic

 

[flugh]

Just a 'me too' post here. I had two NICs using the same driver (slightly different cards though). Sometimes one would be detected first and brought up as eth0, sometimes the other one would. That really hosed up things since it was my gateway/masquerade box I used the network configuration tool in Mandrake to specify the MAC and my problems were solved.

----
JBR

 

[clonny2]

You need to make sure that both show up in the config files.

Look at /etc/modules.conf. See if there is an alias for eth0 and eth1.

Secondly, each nic will need its own config file.

look at /etc/sysconfig/network-scripts/ifcfg-eth0 and ifcfg-eth1.

You can also run the program called neat. See if Neat sees both network cards.

You can try more debugging by looking at /var/log/messages and look to see when the driver gets loaded.


>---------------------------------------Lawrence Feldman
SR. QA. Engineer SNAP Appliance
lfeldman@snapappliance.com

 

[zeland]

My RH8 Firewall/Router has 2 identical NICs. I had to bind the interfaces to the NIC's MAC address. This can be done using the neat program.

 

[clonny2]

zeland, if you bind them together, then you are in FailOver and/or Load Balence mode. Not all NICS can be teamed together. Secondly, this will have the Server only show up with 1 IP, not 2.


edita, the reason the cards moved was b/c of the mac address or irq on the second card was lower than the one of the first, so it became the first.

Secondly, what do you mean doesn't search the second nic. The second nic does not show up?

>---------------------------------------Lawrence Feldman
SR. QA. Engineer SNAP Appliance
lfeldman@snapappliance.com

 

[zeland]

clonny2, by binding, I mean binding the interface to a specific NIC's MAC address. e.i. "00:26:54:0B:F2:07" = "eth0" and not binding as in failover, line aggregation or load balancing.

In my case, my firewall/router is a bit screwy, you would never really know which card gets assigned to eth0 and eth1 when I reboot the box. This causes problems in my IPTABLES script as my internal interface my suddenly become the external.