[Solved]Xen networking question

[COiN3D]

Hello there,

I've just installed a fresh copy of Gentoo amd64 2007.0 with Xen and bootet it correctly. For my installation, I took a look at the Gentoo-Wiki XEN Howto, as well at the official Gentoo-XEN Howto. However, there is one thing which I'm not sure about if its working fine: the networking device.

In Gentoo Wiki, there is a line which tells me that I should deactivate net.eth0 completely:

[COiN3D]

No one with xen?
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[xming]

The behavior and interactions of xend, gentoo network scripts and udev has changed oh so many times, it's frustrating. Xen 3.2 changed the default bridge name and it's really messy, I haven't any time to figure out how it works (or not .

My advise (and experience since the xen 2.x days till now): don't use xend's magic for your network !!!!!

So what you need for a basic bridged xen are:

• a bridge for all your domUs
  
• a physical interface plugged into that bridge
  

Really simple no?

Step you have to do:

• create a bridge in /etc/conf.d/net like this:

  Code:

  config_xenbr0=( "192.168.100.1/24" )

  and put your eth0 in the bridge by

  Code:

  bridge_xenbr0="eth0"

  
  
• /etc/xen/xend-config.sxp comment the line

  Code:

  (network-script network-bridge)

  so it becomes

  Code:

  #(network-script network-bridge)

  and add

  Code:

  (vif-script vif-bridge bridge=xenbr0)

  
  
• in /etc/init.d do

  Code:

  ln -s net.lo net.xenbr0

  
  
• add net.xenbr0 in your default runlevel by

  Code:

  rc-update add net.xenbr0 default

  
  
• in every config of DomU you need this:

  Code:

  vif = [ 'mac=00:16:3e:00:00:01, bridge=xenbr0' ]

  (please change mac for every DomU)
  

With is network setup you have everything in hand and your network won't break after any upgrade (this is a must for remote machines). The only difference is that your eth0 does not have an ip address anymore.
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[COiN3D]

Okay, thank you very much. I'll try it your way.
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