Qemu Network with two virtual boxes

P.U.Kruppa ulrich at pukruppa.net
Fri May 11 18:58:47 UTC 2007


On Thu, 10 May 2007, Toni Schmidbauer wrote:

> At Sat, 5 May 2007 08:21:47 +0200 (CEST),
> P.U.Kruppa wrote:
>> ___________     _________________|_________________
>> "Real" LAN |---|          192.168.10.1             |
>> -----------    |           FreeBSD 6.2             |
>>                |        |                 |        |
>> 	       |  ______|______    _______|______  |
>>                | | 192.168.10.5|  | 192.168.10.6 | |
>>                | |   Win2k on  |  |  FreeBSD on  | |
>>                | |     Qemu    |  |     Qemu     | |
>>                |  -------------    --------------  |
>>                 -----------------------------------
>>
>> My real LAN uses 192.168.10.1 as gateway to the Internet.
>>
>> For now I can only connect one of the two virtual boxes to my real
>> network, but not both. This is how I do it:
>>
>> # kldload aio kqemu if_tap bridge
>> # sysctl net.link.ether.bridge_cfg=rl0,tap0
>> # sysctl net.link.ether.bridge.enable=1
>> # qemu-system-x86_64 -hda Win2k.img -m 512 -localtime \
>>   -net tap -net nic
>>
>> When now I try to connect the second virtual box, it will "steal" the
>> first box's network connection.
>
> i think you need two seperate tap interfaces:
>
> qemu -hda Win2k.img ... -net tap,ifname=tap0
>
> and
>
> qemu -hda freebsd.img ... -net tap,ifname=tap1
>
> but i'm not sure about the bridge configuration. my guess is you need
> two seperate clusters (see bridge(4))
>
> sysctl net.link.ether.bridge_cfg=rl0:1,tap0:1,rl0:2,tap1:2
No success yet :(
Only one of the two machines will be connected correctly.

Thanks anyway,

Uli.

>
> toni
> -- 
> If you understand what you're doing, you're | toni at stderror dot at
> not learning anything.                      | Toni Schmidbauer
> -- Anonymous                                |
>



Peter Ulrich Kruppa
Wuppertal
Germany



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