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Re: [lvs-users] Difference between NAT and FullNAT - help needed

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] Difference between NAT and FullNAT - help needed
From: Simon Horman <horms@xxxxxxxxxxxx>
Date: Fri, 1 Feb 2013 17:08:10 +0900
On Fri, Feb 01, 2013 at 05:05:51PM +0900, Simon Horman wrote:
> On Fri, Feb 01, 2013 at 08:42:25AM +0100, Stefan Bauer wrote:
> > -----Ursprüngliche Nachricht-----
> > Von:        Simon Horman <horms@xxxxxxxxxxxx>
> > > Traditionally IPVS-NAT has worked in the form of destination-NAT,
> > > that is modifying the destination IP address to that of the real-server.
> > > This works well for in a wide range of circumstances.
> > > 
> > > More recently Full NAT support was added. This modifies
> > > source IP address to that of the linux-director as well
> > > as the destination IP address to that of the selected real-server.
> > 
> > So the linux-director does not have to be the default-gw for the 
> > real-servers anymore with Full-NAT?
> 
> Return packets still need to travel through the linux-director
> as the Full-NAT as the address translations need to be reversed.

Sorry, I missed your point. As the return packets will be addressed
to the linux-director I think that you are correct and that a
default (or other) route via the linux-director should not be necessary.

> > > An example of where full NAT may be useful is if a real-server wants to
> > > access a virtual service handled by the linux-director of the real-server.
> > 
> > Stefan
> > 
> > _______________________________________________
> > Please read the documentation before posting - it's available at:
> > http://www.linuxvirtualserver.org/
> > 
> > LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> > Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
> > or go to http://lists.graemef.net/mailman/listinfo/lvs-users

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