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From: Marek Kierdelewicz <marek@piasta.pl>
To: Kurt Wampler <Kurt.Wampler@brion.com>
Cc: netfilter@vger.kernel.org
Subject: Re: How to achieve reverse NETMAP functionality?
Date: Sun, 20 Mar 2011 09:20:32 +0100	[thread overview]
Message-ID: <20110320092032.18159dbd@catus> (raw)
In-Reply-To: <20110318164554.G20495@masktools.com>

Hi,

>We have a need to "alias" portions of a customer's internal private IP
>network, because they have an address range which overlaps a private IP
>address range used internally in one of our systems installed at their
>site.  We are trying to avoid having to re-IP either network.

I haven't tried it, but it seems there's stateless nat available as tc
action. You *probably* could try to do dnat on egress (eg. interface
eth0) and snat on ingress (ingress qdisc attached to eth0).

# tc action add action nat help
Usage: ... nat NAT
NAT := DIRECTION OLD NEW
DIRECTION := { ingress | egress }
OLD := PREFIX
NEW := ADDRESS

Best regards,
Marek Kierdelewicz

  parent reply	other threads:[~2011-03-20  8:20 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-03-18 23:45 How to achieve reverse NETMAP functionality? Kurt Wampler
2011-03-19  8:20 ` Pandu Poluan
2011-03-20  8:20 ` Marek Kierdelewicz [this message]
2011-03-21 13:36 ` Patrick McHardy

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