Re: network interface names ethX and renaming interfaces

From: Neale Banks (
Date: Mon Dec 10 2001 - 02:45:44 EST

On Fri, 7 Dec 2001, Hein Roehrig wrote:

> in Linux 2.2.20 I have a problem renaming the network interface dummy0
> to eth0 and then starting a regular ethernet driver --- I would like
> it to come up as eth1 but it comes up as eth0, messing up the dummy0
> interface.
> Reading the source, it appears that in init_ethernev(), ethernet
> drivers claim device names according to the array ethdev_index and
> shoot down any device name eth0 claimed by a non-ethernet driver.

I presume you are refering to init_etherdev() in drivers/net/net_init.c ?

> Therefore it appears to me that SIOCSIFNAME should either disallow
> renaming to ethX or it should adjust ethdev_index.

I wonder why it doesn't either use dev_alloc_name() from
net/core/dev.c , or implement similar logic?


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This archive was generated by hypermail 2b29 : Sat Dec 15 2001 - 21:00:16 EST