Re: User mode network cause other network doesn't work any more

[Jan Kiszka <jan.kiszka@siemens.com>]

On 2011-09-02 17:41, Liang Guo wrote:
> On Fri, Sep 2, 2011 at 10:42 PM, Jan Kiszka <jan.kiszka@siemens.com> wrote:
>> On 2011-09-02 15:59, Liang Guo wrote:
>>> Hi,
>>>
>>> When I run kvm with following option:
>>>
>>>          -net nic -net vde,sock=/var/run/vde2/vde3.ctl
>>>
>>> the guest OS's network work as expected, I can ping/ssh from/to host OS,
>>> but when I run kvm with:
>>>
>>>         -net nic -net user -net nic -net vde,sock=/var/run/vde2/vde3.ctl
>>
>> That's probably the classic mistake: You create one virtual LAN inside
>> QEMU this way. Attached to this LAN are all four peers (two NICs, slirp
>> and VDE).
> Thank you pointing this out, I thought '-net nic' and '-net user|tap|vd' was
> connected with their sequence.
> 
>>
>> What you likely want are two backend/frontend pairs:
>> -net nic,netdev=net1 -net user,id=net1 \
>> -net nic,netdev=net2 -net vde,sock=/var/run/vde2/vde3.ctl,id=net2
>>
>> Jan
> I can reach my object with
> 
> -netdev user,id=eth0  -device virtio-net-pci,netdev=eth0 \
> -netdev vde,sock=/var/run/vde2/vde3.ctl,id=eth1 -device
> virtio-net-pci,netdev=eth1
> 
> or
> 
> -net nic,vlan=1 -net user,vlan=1 \
> -net nic,vlan=2 -net vde,sock=/var/run/vde2/vde3.ctl,vlan=2

Err, yeah, I also confused the syntax. :)

Jan

-- 
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux