From: David Miller <davem@davemloft.net>
To: aconole@redhat.com
Cc: netdev@vger.kernel.org, pshelar@ovn.org, jhs@mojatatu.com,
xiyou.wangcong@gmail.com, jiri@resnulli.us, dev@openvswitch.org,
linux-kernel@vger.kernel.org, mleitner@redhat.com,
paulb@mellanox.com, roid@mellanox.com, nicolas.dichtel@6wind.com
Subject: Re: [PATCH 1/2] openvswitch: support asymmetric conntrack
Date: Wed, 04 Dec 2019 16:32:32 -0800 (PST) [thread overview]
Message-ID: <20191204.163232.1306369201437008300.davem@davemloft.net> (raw)
In-Reply-To: <20191203213414.24109-1-aconole@redhat.com>
From: Aaron Conole <aconole@redhat.com>
Date: Tue, 3 Dec 2019 16:34:13 -0500
> The openvswitch module shares a common conntrack and NAT infrastructure
> exposed via netfilter. It's possible that a packet needs both SNAT and
> DNAT manipulation, due to e.g. tuple collision. Netfilter can support
> this because it runs through the NAT table twice - once on ingress and
> again after egress. The openvswitch module doesn't have such capability.
>
> Like netfilter hook infrastructure, we should run through NAT twice to
> keep the symmetry.
>
> Fixes: 05752523e565 ("openvswitch: Interface with NAT.")
> Signed-off-by: Aaron Conole <aconole@redhat.com>
> ---
> NOTE: this is a repost to see if the email client issues go away.
Applied and queued up for -stable.
prev parent reply other threads:[~2019-12-05 0:32 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-03 21:34 Aaron Conole
2019-12-03 21:34 ` [PATCH 2/2] act_ct: " Aaron Conole
2019-12-05 0:33 ` David Miller
2019-12-05 0:32 ` David Miller [this message]
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