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Re: [Qemu-devel] Using tap device for qemu
From: |
Shannon Zhao |
Subject: |
Re: [Qemu-devel] Using tap device for qemu |
Date: |
Tue, 10 Mar 2015 14:32:59 +0800 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 |
On 2015/3/10 12:59, Gayathri Nagarajan wrote:
> I have a problem with networking in qemu. I want to use the Linux tap device
> for qemu network. For that
>
> *1. I created a bridge -*
>
> $ sudo brctl addbr br0
>
> *2. I used the following qemu-ifup script*
>
> #!/bin/sh
> set -x
>
> switch=br0
>
> if [ -n "$1" ];then
> /usr/bin/sudo /usr/sbin/tunctl -u `whoami` -t $1
> /usr/bin/sudo /sbin/ip link set $1 up
> sleep 0.5s
> /usr/bin/sudo /usr/sbin/brctl addif $switch $1
> exit 0
> else
> echo "Error: no interface specified"
> exit 1
> fi
>
> *3. When I run qemu using*
>
> $ qemu-system-i386 -m 200M -cdrom images/ss.iso -serial stdio -device
> e1000,netdev=net0,mac=DE:AD:BE:EF:00:C0 -netdev
> tap,id=net0,script=/home/user/qemu-ifup
>
> */home/user/qemu-ifup:could not launch network script*
>
Please check whether qemu-ifup exits at this directory and qemu-ifup has
executable permission.
> *qemu-system-i386: -netdev tap,id=net0,script=/home/user/qemu-ifup: Device
> 'tap' could not be initialized*
>
>
> How do I resolve this problem?
>
> Thank you
>
> gayathri
>
>
--
Thanks,
Shannon