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Re: [lvs-users] LVS-DR Director doesn't rewrite MAC nor send to RIP when

To: "LinuxVirtualServer.org users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] LVS-DR Director doesn't rewrite MAC nor send to RIP when CIP is not local to subnet
From: Joseph Mack NA3T <jmack@xxxxxxxx>
Date: Thu, 19 Jul 2007 17:02:34 -0700 (PDT)
On Thu, 19 Jul 2007, Jessie wrote:

> Update-
>
> I discovered the problem lies in routing. Our director is newly multi-
> homed and it seems that whichever interface our default gw lies, will
> allow the LVS-DR to actually work. So for all other interfaces on the
> director, the VIP instances will no longer work outside of the subnet.

you've done something funny with the routing.

I assume there's clients on your LAN and clients coming from 
the internet. They all should have a route to the VIP (which 
I assume is on the outside/internet side of the director) 
even if the clients on the LAN have to make a short hop to 
the internet first.

The director doesn't need (and for security shouldn't have) 
a default gw for tcp/udp packets from the VIP - all return 
packets come from the VIP on the realservers.

> What are people doing for multi homed LVS boxes?

we haven't had the problem before.

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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