[ILUG] NICs in RHEL

[Conor Wynne]

Brian O'Mahony wrote:
> Conor / Thomas thanks for all the suggestions. These machines will be on remote sites where, so the checking cables will be out. I think locking the MAC addresses to the interface is the best option for me.
>
>   
Udev is the only guaranteed way of achieving this, will post ya mine
later on. gotta rush!

> Thanks again.
>
> B
>
> -----Original Message-----
> From: Thomas Pedoussaut [mailto:thomas at pedoussaut.com] 
> Sent: 02 December 2009 12:43
> To: Brian O'Mahony
> Cc: ilug at linux.ie
> Subject: Re: [ILUG] NICs in RHEL
>
> On Wed, 2009-12-02 at 12:26 +0000, Brian O'Mahony wrote:
>   
>> I am setting up a 2850 to do some testing for moving our code
>> repositories over to SAN storage. I have a pe2850 with two onboard
>>  NICs and a dual port PCI nic. All four ports are coming up as
>> Intel e1000 ports. Is there any way of telling from inside the OS
>> which exact port eth0,1,2,3 actually are? Ive seen RHEL change port
>> around before, and I was just wondering how to check which interface
>> corresponds to which physical port, as this will probably be
>> important when we implement it.
>>     
>
> There is 2 elements there.
> 1) using mii-tool or ethtool and plugging one by one the interfaces to a
> switch you can determinate which is which.
> 2) in /etc/sysconfig/network-scripts/ifcfg-ethX you can set
> HWADDR=XX:XX:XX:XX:XX:XX to the NIC's ethernet address which should
> "lock" the link between ethX and the physical port.
>
>
>