On 2011-04-15,at 11:27:26, Amos Kong wrote:
>发送日期:2011-04-15 11:27:26
>收件人:wuyu8242; autotest
>抄送:
>主题:Re: Re: Re: [Autotest] About the mac addr and ip addr
>>
>2011/4/15 wuyu8242 <[email protected]>:
>> On 2011-04-15,at 11:10:25, Amos Kong wrote:
>>
>>>发送日期:2011-04-15 11:10:25
>>>收件人:wuyu8242; autotest
>>>抄送:
>>>主题:Re: Re: [Autotest] About the mac addr and ip addr
>>>>
>>>>>2011/4/13 wuyu8242 <[email protected]>:
>>>>>> hi Lucas, Amos,
>>>>>>
>>>>>> Disturbing you!There are some issues about network test. About the mac
>>>>>> addr
>>>>>> and ip addr, the result of ifconfig include eth0 and eth1, the eth0 has
>>>>>> no
>>>>>> ip address, the eth1 has a ip: 10.0.2.25, but the conf file of eth1 is
>>>>>> not
>>>>>
>>>>>What's your qemu commandline ? '10.0.2.25 always be assigned when we
>>>>>use userspace network(NAT mode).
>>>>>qemu-kvm -net user ....
>>>
>>>> my command line as following:
>>>> [33m 92 04/15 05:48:34 INFO | kvm_vm:0987| Running qemu command:
>>>> /usr/bin/qemu-kvm -name 'vm1' -monitor
>>>> unix:'/tmp/monitor-humanmonitor1-20110411-062101-hWQJ',server,nowait
>>>> -serial unix:'/tmp/serial-20110411-062101-hWQJ',server,nowait -drive
>>>> file='/tmp/kvm_autotest_root/images/f11-64.qcow2',index=0,if=ide,cache=none
>>>> -net nic,vlan=0,model=rtl8139,macaddr='9a:a3:23:b0:e0:d0',id='idsLxMpu'
>>>> -net user,vlan=0 -m 512 -smp 2 -redir tcp:5000::22 -vnc :0
>>>>
>>>> if the network is the NAT mode, why not connect other ip? and the
>>>> 10.0.2.25 is fixed.
>>>
>>>qemu-kvm has two network modes
>>>
>>>1. NAT mode
>>># qemu-kvm -net nic,... -net user,...
>> yes, I used this mode, and this mode is default mode in code,too, so this
>> mode should be connected to other host ip, but failed.
>
>guest)# ssh 10.0.2.2 (login host)
>And I connect other host .
>guest)# ping www.google.com (successfully ..)
>
o? but my host ip is 192.168.x.x not 10.0.x.x, only the guest ip is 10.0.x.x,
that is say, the guest ip and host ip is not the same network segment,
so i ping google failed.
>>>2. bridge mode
>>># qemu-kvm -net nic,.. -net tap,script=/etc/qemu-ifup
>
>You should try this, it's more popular. Libvirt uses this mode by default.
>
ok, I try it right now. O, I have a wrong understanding. :)
thanks Amos:)
>>># cat /etc/qemu-ifup
>>>#!/bin/sh
>>>switch=switch
>>>/sbin/ifconfig $1 0.0.0.0 up
>>>/usr/sbin/brctl addif ${switch} $1
>>>/usr/sbin/brctl setfd ${switch} 0
>>>/usr/sbin/brctl stp ${switch} off
>>>
>>>switch is a bridge device in the host, you can reference the following
>>>document.
>>>http://www.linux-kvm.org/page/KVM-Autotest/Client_Install#More_about_machine_setup_-_Bridges
>>>
>>>MORE detail for KVM network: http://www.linux-kvm.org/page/Networking
>>>
>> Okay, I will try it, thank you Amos :)
>
------------------
wuyu8242
2011-04-15
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