The
network interface name, e.g.
eth0,
is assigned to each hardware in the Linux kernel through the user
space configuration mechanism, udev (see Section 3.5.11,
“The udev system”),
as it is found. The network interface name is referred as physical
interface in ifup(8)
and interfaces(5).
In
order to ensure each network interface to be named persistently for
each reboot using MAC
address etc.,
there is a record file "
/etc/udev/rules.d/70-persistent-net.rules".
This file is automatically generated by the
"/lib/udev/write_net_rules"
program, probably run by the "persistent-net-generator.rules"
rules file. You can modify it to change naming rule.Caution
When
editing the "
/etc/udev/rules.d/70-persistent-net.rules"
rules file, you must keep each rule on a single line and the MAC
address in
lowercase. For example, if you find "Firewire device" and
"PCI device" in this file, you probably want to name "PCI
device" as eth0 and
configure it as the primary network interface.
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