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Re: [lvs-users] LVS does not route/forward after a few days

To: "'LinuxVirtualServer.org users mailing list.'" <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] LVS does not route/forward after a few days
From: "Shaun Chong" <shaun@xxxxxxxxxxxxxx>
Date: Mon, 1 Jun 2009 10:17:11 +0800
Hi Graeme,

I *think* I've addressed the ARP problem previously. If I didn't fix it, the
whole LVS-DR wouldn't work in the first place, right?

What I did was follow the instructions on
http://www.redhat.com/docs/manuals/csgfs/browse/4.6/Virtual_Server_Administr
ation/s2-lvs-direct-arptables-VSA.html

Could it be that I did not fix the ARP problem properly? Or is there another
possible error in my setup?

Cheers,

Shaun

-----Original Message-----
From: lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx
[mailto:lvs-users-bounces@xxxxxxxxxxxxxxxxxxxxxx] On Behalf Of Graeme Fowler
Sent: Friday, May 29, 2009 5:09 PM
To: LinuxVirtualServer.org users mailing list.
Subject: Re: [lvs-users] LVS does not route/forward after a few days

On Fri, 2009-05-29 at 10:02 +0800, Shaun Chong wrote:
> Is there any way at all to diagnose this?

Yes.

You have "The ARP Problem". Your realservers are sending ARP responses
for the VIP, and eventually one of them is winning out over the
director.

Please read the HOWTO, or search the list archives, to see how to
address this.

Graeme


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