Hi Liu,<br><br>I don't fully understand what the problem is. Why can't you edit /etc/network/interfaces? <br><br>You shouldn't create a bridge in the frontend at all (at least not for opennebula), the bridge should be created in the nodes. Keep in mind that even with a bridge your host/node will not lose its IP.<br>
<br>For instance, in the following setup eth0 is the physical interface and beth0 is a bridge:<br><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"># The primary network interface</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">auto beth0</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;">iface beth0 inet static</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> address 192.168.5.10</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> netmask 255.255.255.0</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> network 192.168.5.0</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> broadcast 192.168.5.255</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> bridge_ports eth0</span><br style="font-family: courier new,monospace;"><span style="font-family: courier new,monospace;"> bridge_stp off</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;"> bridge_maxwait 5</span><br><br>As you can see it's configured to bridge the physical interface eth0, so that VMs can be attached to it by using beth0. Read this document for more info: <a href="https://help.ubuntu.com/community/KVM/Networking">https://help.ubuntu.com/community/KVM/Networking</a> .<br>
<br>Regards,<br><br>Jaime<br><br><div class="gmail_quote">On Wed, Oct 21, 2009 at 10:33 AM, Liu, Zhentao <span dir="ltr"><<a href="mailto:Zhentao.Liu@fokus-extern.fraunhofer.de">Zhentao.Liu@fokus-extern.fraunhofer.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<p><font size="2">Hello,<br>
<br>
I am new for opennebula. I want to build my cloud with my two PCs. But my two PCs are both using static IP addresses in the Ethernet of my institute.<br>
<br>
Now I want to configure a bridge on the front-end to assign IP addresses to VMs on the node. But I can't configure the file /etc/network/interfaces,<br>
<br>
because my network would be down if I configured the file. I only have one Ethernet interface eth0. This interface is used to get the static IP address<br>
<br>
from my Ethernet. How can I add a bridge on the front-end to assign IP addresses?<br>
<br>
Any helps?<br>
<br>
Regards<br><font color="#888888">
<br>
Zhentao</font></font>
</p>
</div>
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