Re: Trouble understanding net config options

[Charles Duffy <Charles_Duffy@messageone.com>]

Michael Jinks wrote:
> On Wed, Jul 15, 2009 at 6:24 PM, Chris Webb<chris@arachsys.com> wrote:
>> You want
>>
>>  -net nic,vlan=0 -net tap,vlan=0,ifname=tap11 -net nic,vlan=1 -net tap,vlan=1,ifname=tap12
> 
> Progress!  This works, I can bring up the guest and watch it boot, but
> both of its NICs came up bound to the first bridge on the system.
> 
> I can work around that using 'brctl delif' and 'brctl addif' on the
> host system, but how would I automate it so that, say, tap11 always
> goes to br1, and tap12 always goes to br0?  I guess by taking out the
> brctl in the kvm ifup script, and pre-setting all my bridge/tap
> connections?

Use the script= argument on the -net tap,vlan=1 to use a qemu-ifup 
script which connects the tap device to the bridge you'd prefer be used.