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Re: [Xen-devel] [PATCH 5/5] docs: Update the xl network config documentation with IPv6 support



On Tue, 2014-05-20 at 16:56 +0200, Sylvain Munaut wrote:
> Signed-off-by: Sylvain Munaut <s.munaut@xxxxxxxxxxxxxxxxxxxx>
> ---
>  docs/misc/xl-network-configuration.markdown |   15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/docs/misc/xl-network-configuration.markdown 
> b/docs/misc/xl-network-configuration.markdown
> index 3c439d4..bad356d 100644
> --- a/docs/misc/xl-network-configuration.markdown
> +++ b/docs/misc/xl-network-configuration.markdown
> @@ -128,6 +128,21 @@ configured. A typically behaviour (exhibited by the 
> example hotplug
>  scripts) if set might be to configure firewall rules to allow only the
>  specified IP address to be used by the guest (blocking all others).
>  
> +The linux hotplug script supports both IPv4 and IPv6 in this field. When
> +the field is omitted or empty, both will be fully allowed. If only IPv4s
> +are listed, then IPv6 will be blocked completely. Symetrically, if only

"Symmetrically"

> +IPv6s are listed, then IPv4 will be blocked. If you wish to filter one
> +but not the other, you can use the wildcard addresses 0.0.0.0/0 and
> +::0/0 for IPv4/6 respectively.
> +
> +As a special case, you can use 'eui64' token as an IPv6 address and this
> +will allow traffic all traffic from the VM where the lower 64 bits are
> +matched against the EUI64 generated from the mac address of the VIF. It

If you say [EUI64] then at the end you can say:

[EUI64]: http://en.wikipedia.org/wiki/IPv6_address#Modified_EUI-64

(assuming this is what was implemented and not "normal" EUI-64, whatever
that is)

I think it would be reasonable to fold this into the patch which adds
this functionality, but I'm happy with it remaining separate too.


> +is up to the network administrator to filter the network part of the
> +address globally if necessary. This is of course only usable for the
> +vif-bridge script as the vif-route will require a fully defined address
> +in the 'ip' field.
> +
>  ### backend
>  
>  Specifies the backend domain which this device should attach to. This



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