Nicolas Kovacs wrote:

Hi,

I have a LAN server running CentOS 5.11 with two NICs eth0 and eth1. I'd like to swap the interface names, but I don't know how to go about that under CentOS.

Here's what I would do on a Slackware server (I have one next to me in my office).

Open /etc/udev/rules.d/70-persistent-net.rules and edit it:

# PCI device 0x8086:/sys/devices/pci0000:00/0000:00:04.0/0000:03:00.0 (e1000e) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:22:64:8a:4c:c2", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x8086:/sys/devices/pci0000:00/0000:00:02.0/0000:02:00.0 (e1000e) SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="2c:27:d7:15:54:a1", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

To swap interfaces, I simply have to switch the respective NAME="ethX" attributes and restart the server.

How would you do something similar on a machine running CentOS 5.11?

Have you tried swapping the HWADDR lines in /etc/sysconfig/network-scripts/ifcfg-eth0 and ifcfg-eth1 ?

No idea if will work ...

James Pearson