hi,
i want the kvm guest machine to connect to network using macvtap..
I tried this vepa mode it is also not working.
My test environment
Host os=rhel6.1
Guest os = rhel6.1
Libvirt=0.8.7
Kvm hypervisor
I have made this entry in guest xml file
<interface type='direct'>
<source dev='eth0' mode='bridge'/>
<model type='virtio'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
Now when I start the guest
#virsh start guest
Following macvtap0 is created on host and is shown below
#ip link show macvtap0
51: macvtap0@eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UNKNOWN qlen 500
link/ether 52:54:00:55:AE:B5brd ff:ff:ff:ff:ff:ff
but when the guest is up and I try to perform
# ifup eth0
eth0 has same mac address as that of macvatap0 that is 52:54:00:55:AE:B5
due to this guest is not able to get dhcp address nor static ip address is working.
Please let me know how macvtap work on kvm.
-----Original Message-----
From: Gerhard Stenzel [mailto:gstenzel@xxxxxxxxxxxxxxxxxx]
Sent: Thursday, December 15, 2011 3:47 PM
To: Amit Tewari
Cc: libvir-list@xxxxxxxxxx
Subject: Re: FW: macvtap not working on rhel 6.1 x86 machine
On Thu, 2011-12-15 at 15:20 +0530, Amit Tewari wrote:
>
>
> Hi all,
>
>
>
> My test environment
>
> Host os=rhel6.1 x86 machine
>
> Guest os = rhel6.1
>
> Libvirt=0.8.7
>
> Kvm hypervisor
>
Hi,
maybe it would help if you try to explain first, what you are trying to
achieve, what your setup looks like (including your DHCP setup and
switch infrastructure).
Here (http://libvirt.org/formatdomain.html) you will find the following
xml sample, which works:
...
<devices>
<interface type='direct'>
<source dev='eth0' mode='vepa'/>
</interface>
</devices>
...
This will connect your VM directly to the same network as eth0. Please
be aware that, depending on your switch configuration (supports hair pin
mode or not), your host might not be able to talk to your VM and vice
versa.
--
Best regards,
Gerhard Stenzel,
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