From: Jan Kiszka <jan.kiszka@siemens.com>
To: Liang Guo <bluestonechina@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: User mode network cause other network doesn't work any more
Date: Fri, 02 Sep 2011 16:42:48 +0200 [thread overview]
Message-ID: <4E60EB68.5020900@siemens.com> (raw)
In-Reply-To: <CAJwrgW62XqJy9hf-whzX_EMP87rCJtWwP1Wzbyyw3-F4GqpwwA@mail.gmail.com>
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).
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
--
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2011-09-02 14:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-02 13:59 User mode network cause other network doesn't work any more Liang Guo
2011-09-02 14:42 ` Jan Kiszka [this message]
2011-09-02 15:41 ` Liang Guo
2011-09-02 15:42 ` Jan Kiszka
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