udev and renaming interfaces

[Timur Irmatov <irmatov@gmail.com>]

Hi!

On one of our server we have renamed 'eth0' to be 'lan' interfaces. We
have done it by editing /etc/udev/rules.d/70-persistent-net.rules.
Later we have discovered that some tools (iptraf and vlan package's
support for vlan in /etc/network/interfaces) do not like this naming.
So we have decided to rename that interface back to eth0. We have
edited 70-persistent-net.rules to be empty, rebooted the machine...
and it came back with 'lan' interface. How did it manage to remember
that name?

P.S. System is Debian Lenny, fully updated.

-- 
Timur Irmatov, xmpp:irmatov@jabber.ru