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Re: [lvs-users] Best way to use source NAT?

To: Michael Schwartzkopff <ms@xxxxxxx>
Subject: Re: [lvs-users] Best way to use source NAT?
Cc: "lvs-users@xxxxxxxxxxxxxxxxxxxxxx" <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
From: Julian Anastasov <ja@xxxxxx>
Date: Sun, 8 Nov 2015 11:21:41 +0200 (EET)
        Hello,

On Thu, 5 Nov 2015, Michael Schwartzkopff wrote:

> Hi,
> 
> I found several ways to implement source NAT on the LVS. What is the state of 
> the art way to do this? Using plain iptables or use the ipvs module of 
> iptables?
> 
> As far as I understood, with plain iptables, I need to enable 
> net.vs.conntrack?

        Yes, if Netfilter's conntrack is enabled the faster
option for IPVS is to also enable net.vs.conntrack [1]. It allows
stateful filtering (-m state) and iptables NAT. There is even
specific match for IPVS: net/netfilter/xt_ipvs.c (-m ipvs).

[1] http://marc.info/?t=134728825000003&r=1&w=2

Regards

--
Julian Anastasov <ja@xxxxxx>

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