Re: [Qemu-devel] make qemu use tap0 instead of tun0

[Henrik Nordstrom]

On Wed, 6 Jul 2005, Jim C. Brown wrote:

> When in tuntap mode, qemu creates a tap device with names like tun0, tun1,
> etc. which seems to confuse some users (the smart ones who ask why qemu uses
> IP frames instead of ethernet frames ... or something along those lines).
> Theses should be named tap0, tap1, etc. This patch fixes qemu.

My understanding was is that tunX is the tun/tap driver (/dev/net/tun), 
while tapX is the older ethertap driver (/dev/tapX), but looking closely 
at the tun/tap driver you seem to be correct. As I almost always specify 
explicit device names (i.e. qemuX for qemu connections) I never really 
cared what the defaults were.

A simpler patch would be to not specify a device name template at all. 
This lets the tun/tap driver select whatever it feels suitable for the 
type of device created, defaulting to tap%d for TUN_TAP_DEV devices.

Regards
Henrik