/etc/udev/rules.d/70-persistent-net.rules

[Matthew Carpenter]

fyi,

For those of you who may wish to build an ubuntu system with the hard-drive 
in one machine, then move it to another (it works rather well, actually), or 
if you simply want to manipulate how your network interfaces show up....

Instead of the "iftab" file which identifies which MAC address should be 
which interface...  ubuntu recently modified this to place the setup directly 
into a udev config file...

/etc/udev/rules.d/70-persistent-net.rules

It's pretty self-explanatory once you look at it for a sec.
Mine looks like this (post-modification):

# This file maintains persistent names for network interfaces.
# See udev(7) for syntax.
#
# Entries are automatically added by the 75-persistent-net-generator.rules
# file; however you are also free to add your own entries.

## PCI device 0x8086:0x109a (e1000)
#SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:15:58:7b:23:95", NAME="eth0"

## PCI device 0x8086:0x4227 (ipw3945)
#SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:13:02:b9:e6:b3", NAME="eth1"

# PCI device 0x8086:0x109a (e1000)
SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:16:36:da:dc:fd", NAME="eth0"

# PCI device 0x8086:0x4222 (ipw3945)
SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:19:d2:22:45:7d", NAME="eth1"



Notice that the original machine's NICs are mentioned first.  The current 
machine's NICs were then mentioned as different interfaces.  I commented out
the originals, and changed the existing NICs to the names I expect...


-- 
Matthew Carpenter
mcarpenter at intelguardians.com
http://www.intelguardians.com

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