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Re: [lvs-users] ipvs not doing any link balancing

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] ipvs not doing any link balancing
From: Sivaraman Kannan <k.sivaraman@xxxxxxxxx>
Date: Thu, 26 Aug 2010 20:21:05 +0530
Hi guys,
    Thanks for the responses. Yeah I am trying something of the sort that
Keijser mentioned.

Joe, yeah each WAN interface has a different WAN gateway, right?

By "came in", I meant came in through the internet to the LAN side.

regards
Sivaraman.

On Thu, Aug 26, 2010 at 5:24 PM, Joseph Mack NA3T <jmack@xxxxxxxx> wrote:

> On Thu, 26 Aug 2010, Sivaraman Kannan wrote:
>
> > Hi guys
> >    I have a setup where I have three interfaces on my
> > linux box, one is a LAN interface and two are connected to
> > the internet and I want to do link balancing of all
> > packets coming from the LAN onto the two WAN interfaces.
>
> I assume from your posting that you understand that this is
> the reverse of the way LVS was designed to work. There's no
> reason why your setup can't work. However if you're
> balancing port 80, a proxy server is the usual device here.
>
> > I have configured ipvs to do the link balancing
> > (scheduling is weighted round-robin) using the following
> > command for each WAN interface:
> >
> > ipvsadm -a -f <fwmark> -r wan_real_server_ip -z wan_interface -w weight
> -j
>
> In a standard LVS setup, the LANIP would be the VIP. I guess
> it should be possible to use the WANIP as the VIP (the WANIP
> would be the DIP in the standard LVS).
>
> > Right now, the behavior is that LVS does not do any link
> > balancing, but only sends it out of one interface (i think
> > the first interface that came up). ipvsadm -lnc shows a
> > whole bunch of connections in SYN_RECV state...anything
> > which came in on the other interface never gets a reply.
>
>
> "came in" .. which direction is "in"? - from the internet or
> from the client?
>
> > If I specify the real server IP as the WAN gateway
>
> you have multiple WAN gateways?
>
> > instead of the interface IP itself, it works but I really
> > need this scenario to work. Any suggestions? Do you need
> > more information? Please let me know. Thanks!
>
> Joe
> --
> Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> jmack (at) wm7d (dot) net - azimuthal equidistant map
> generator at http://www.wm7d.net/azproj.shtml
> Homepage http://www.austintek.com/ It's GNU/Linux!
>
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