On Tue, Sep 03, 2013 at 02:02:08PM +0100, Steve Brooks wrote: > > > You don't actually need hwaddr in your ifcfg-* files -- though it's > > probably not a bad thing to have the MAC in there. [As Scott pointed out, > > it's all about what udev has in its rules.] > > > > > >> > >> You also have to look at /etc/udev/rules.d/70-persistent-net.rules > >> > > I am using "centos 5" and it seems the "udev" cam in with e16 ... So can't > go that way.. Cursory googling indicates that you can create the file (and directories if needed). The line in there would read something like SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="XX:XX:XX:XX:XX:XX", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0" with XX:XX etc being the hardware address. It's all on one line and quotation marks are used as shown. All this is untested by me on CentOS 5.x -- Scott Robbins PGP keyID EB3467D6 ( 1B48 077D 66F6 9DB0 FDC2 A409 FA54 EB34 67D6 ) gpg --keyserver pgp.mit.edu --recv-keys EB3467D6