Re: [PATCH nf-next v5 1/2] netfilter: nf_conntrack: add direction support for zones

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On Fri, Aug 14, 2015 at 04:03:39PM +0200, Daniel Borkmann wrote:
> This work adds a direction parameter to netfilter zones, so identity
> separation can be performed only in original/reply or both directions
> (default). This basically opens up the possibility of doing NAT with
> conflicting IP address/port tuples from multiple, isolated tenants
> on a host (e.g. from a netns) without requiring each tenant to NAT
> twice resp. to use its own dedicated IP address to SNAT to, meaning
> overlapping tuples can be made unique with the zone identifier in
> original direction, where the NAT engine will then allocate a unique
> tuple in the commonly shared default zone for the reply direction.
> In some restricted, local DNAT cases, also port redirection could be
> used for making the reply traffic unique w/o requiring SNAT.

Applied, thanks Daniel.
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