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RE: LVS and ethernet Bridgeing

To: <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>, "Joseph Mack" <mack.joseph@xxxxxxx>
Subject: RE: LVS and ethernet Bridgeing
Cc: <raf@xxxxxxxx>
From: "Serge Sozonoff" <serge@xxxxxxxxxxxxxxx>
Date: Tue, 2 Oct 2001 14:34:16 +0100
Hi Adrian, Joe and all

I now have one half of LVS-NAT and ethernet bridging working.
Client -> Realserver(direct over bridge)  OK
Client -> VIP on LD OK and LD -> Realserver  OK (Load Balancing)

The only problem thats left is Realserver -> LD -> Client (i.e. the
response)

What I am trying to understand is that even if the Realserver gw address
is the router
and not the LD, the packet still has to go through the LD because of the
bridging.

What do I have to do on the LD to have IPVS pick up the packet and
masquerade it (rewrite it to VIP->CIP)?

Thanks, Serge


-----Original Message-----
From: Radu-Adrian Feurdean [mailto:raf@xxxxxxxx]
Sent: Tuesday, October 02, 2001 2:28 PM
To: Joseph Mack
Cc: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Subject: Re: LVS and ethernet Bridgeing


On Tue, 2 Oct 2001, Joseph Mack wrote:

> Serge Sozonoff wrote:
>
> > I have had a look here
http://bridge.sourceforge.net/devel/bridge-nf/
> > and their apears to be a kernel patch for 2.4.x
> > that does just this, bridging combined with netfilter/iptables
>
>
> I assume you know about the proxy arp method. I don't know
> about its compatibility with iptables.

It doesn't. It "forces" a gateway, in order to simplify the routing
tables.
The machine that does proxy-arp behave as it was an explicit gateway.
Theoretically you can advertise it's address using ARP from other
machine.

 Radu-Adrian Feurdean
mailto: raf @ chez.com
---------------------------------------------------------------------
Nothing is impossible for the man that doesn't have to do it himself.


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