network modules

[Adithyan]

Hi,

In my servers I have 4 NIC. in the /etc/modprob.conf, it shows the modules used for eth0 and 1. Where shal i find the modules used for eth2 and eth3?

Thanks
Adithyan.

[Stuart Browne]

Are all 4 interfaces in use?

If that's the case, I'm going to assume that eth2 and eth3 use the same drivers as eth0 and eth1.

In which case, if you wish to differentiate between the different interfaces, you should use the HWADDR values in /etc/sysconfig/network-scripts/ifcfg-eth*.

[Adithyan]

Hi,

in the lsmod command
e1000 109113 0
bnx2 84932 0
these both modules are displayed. Currently eth2 and 3 are up. But in the /etc/modprobe.conf its not mapped to the modules what it uses infact.

Regards

[Alexander Chuzhoy]

Try the file /etc/sysconfig/hwconf

locate the occurrences of eth{0,1,2,3} and their driver.

[Adithyan]

Thanks Alexander.

Adithyan.

[Sac_3 · Accepted solution]

Hi Adithyan,

U can even find driver used by an interface using "ethtool -i" command

TEST> ethtool -i eth2
driver: e1000
version: 7.3.15a-NAPI
firmware-version: N/A
bus-info: 06:01.0


Regrads,

SaC

[Ralph Grothe]

I am not sure if this is still an issue with current kernels and driver kernel modules.
But for quite some time you needed to pass the kernel the boot param ether, where you would specify irq, base address and name.
For details please see man bootparam, and the Ethernet Devices section there.
There they also refer to this TLDP Ethernet HowTo for multiple devices issues:
http://tldp.org/HOWTO/Ethernet-HOWTO-2.html#ss2.4