Re: [Qemu-devel] tun/tap networking: patch for existing tun

[Jean-Christian de Rivaz <jc@eclis.ch>]

Henrik Nordstrom a écrit :
> On Mon, 3 Oct 2005, Jean-Christian de Rivaz wrote:
> 
>> The idea of the "-vde" option is to have in parameter the VDE socket 
>> (default to "/tmp/vde.ctl") an act like vde_plug so it don't need any 
>> other code to work. Just start a "vde_switch" and as many "qemu -vde" 
>> you wants to create a complete virtual nework (1 switch and n hosts).
> 
> 
> Or in line with the earlier proposal of a -net option:
> 
>   -net vde,socket=/path/to/vde.ctl,group=xxx
> 
> where socket defaults to /tmp/vde.ctl and group defaults to 0 if not 
> specified.

Nice.

>> I think that a syntax like "-net type[:macaddr][,arg[,arg[...]]]" is 
>> more usefull, since the MAC addresse of the TAP devices is not alway 
>> specified as it can be set randomly by the Linux kernel (with possible 
>> collision see code in include/linux/etherdevice.h).
> 
> 
> The MAC of the TUN/TAP device on the host side is a completely different 
> thing and is the MAC the HOST should use on that virtual ethernet. What 
> the option to QEMU specifies is the MAC QEMU should use.

Ok. I was wrong sorry.

>> In case of this new interface, will network script still needed. If 
>> yes, how should we handle them in the new option syntax ?
> 
> 
> -net ...,script=/path/to/script

Ok, can't be more clean.

-- 
Jean-Christian de Rivaz