netdev - Re: Adding SNAT support to LVS/NAT

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Message-ID: <f4845fc0809180138x1eb793ebq153a54c46373bd90@mail.gmail.com>
Date:	Thu, 18 Sep 2008 10:38:31 +0200
From:	"Julius Volz" <juliusv@...gle.com>
To:	"Joseph Mack NA3T" <jmack@...d.net>
Cc:	"Simon Horman" <horms@...ge.net.au>, lvs-devel@...r.kernel.org,
	netdev@...r.kernel.org, j.stubbs@...kthink.co.jp,
	"Siim Põder" <siim@...rad-teel.net>,
	"Vince Busam" <vbusam@...gle.com>
Subject: Re: Adding SNAT support to LVS/NAT

On Thu, Sep 18, 2008 at 12:53 AM, Joseph Mack NA3T <jmack@...d.net> wrote:
> On Tue, 16 Sep 2008, Julius Volz wrote:
>
>> Amazingly, the first SYN and the SYN/ACK of a TCP connection to the
>> VIP:vport do not traverse the NAT chain in POSTROUTING at all
>
> :-(
>
>> (verified by LOG target),
>
> you didn't see the packets in the logs?

Exactly. No matter what I do, only the ACK in response to the SYN/ACK
appears in the logs. With SNAT without IPVS, the SYN packet correctly
enters the chain/table.

I haven't found anything in the IPVS or Netfilter code yet that could
cause this problem...

Julius

-- 
Julius Volz - Corporate Operations - SysOps

Google Switzerland GmbH - Identification No.: CH-020.4.028.116-1
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