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Re: [Xen-users] ebtables support in XCP 1.1

Found these in /etc/sysctl.conf:

# Disable *tables rules for bridge traffic to increase performance
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-arptables = 0

Can anyone verify that those are the correct options to change to enable
ebtables? The note concerning performance is concerning. Does anyone have any idea what sort of performance hit you're going to see if you enable ebtables? What version of ebtables userland tools would be appropriate to install? The default repo:


doesn't exist.  Would the current version from CentOS 5.x

        Ethernet Bridge frame table administration tool

work as expected?  Once we work this out I'll put the info up on the wiki.

On Mon, 17 Oct 2011, brooks@xxxxxxxxxxx wrote:



For OpenStack and others, support for ebtables and other netfilter
options have been added to the kernel. These options have been disabled
by default, but can be re-enabled with simple sysctl commands. These are
the same kernel changes that will be included in the upcoming XenServer
6.0 release.

How do you enable support for ebtables in XCP 1.1?

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