Qemu, Networking and F7

[Itamar Reis Peixoto]

--------------------

Itamar Reis Peixoto

e-mail/msn: itamar at ispbrasil.com.br
skype: itamarjp 
icq: 81053601
+55 34 3238 3845
+55 11 4063 5033
----- Original Message ----- 
From: "Andrew Parker" <andrewparker at bigfoot.com>
To: "For users of Fedora" <fedora-list at redhat.com>
Sent: Thursday, August 02, 2007 6:15 PM
Subject: Re: Qemu, Networking and F7


> On 8/1/07, Charles Curley <charlescurley at charlescurley.com> wrote:
>> Has anyone got qemu working on F7 with networking? I've googled and
>> read the docs, but nothing I've tried produces a working network.
> 
> If you want your host and other hosts to have unfettered access to the
> guest, then tap and bridging is the way to go.  I achive this with the
> following in /etc/qemu-ifup.  Not sure where I found this originally,
> so the credit should go elsewhere, but its been modified a couple of
> times so you can credit me with the bugs:
> 
> #!/bin/sh
> DEV=eth1
> /sbin/ifconfig $1 promisc 0.0.0.0
> if ! /sbin/ifconfig br0 > /dev/null
> then
>        /usr/sbin/brctl addbr br0
>        /usr/sbin/brctl addif br0 $DEV
>        /sbin/ifconfig br0 up
>        addr=`/sbin/ip addr | grep $DEV | grep inet | sed -e
> 's/$DEV/dev br0/' -e s/inet//`
>        /sbin/ip addr add $addr
> fi
> /usr/sbin/brctl addif br0 $1
> /usr/sbin/brctl stp br0 off
> /sbin/ip route | grep $DEV | while read route
> do
>    newroute=`echo $route | sed s/$DEV/br0/ `
>    /sbin/ip route del $route
>    /sbin/ip route add $newroute
> done
> 
> 
> Make sure you chmod a+x it and set DEV to the NIC that you want to
> bridge it with.
> 
> You can qemu as follows:
> 
>    qemu -net nic -net tap image.img
> 
> In your guest OS you'll need to set up the networking.  If you have a
> DHCP server on the DEV NIC you're good to go otherwise you'll have to
> set up a static IP on the same subnet as the DEV NIC.
> 
> The only down side of this is that you need to run qemu as root,
> although I am sure that its possible to get round it, I've just never
> got round to it.
> 
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