[RADIATOR] Multi-homed, Virtual IP and source IP

[Alexander Hartmaier]

I'd suggest to not use those 'direct touting' load balancer modes as
they break layer 2 and 3.
The return packets shouldn't be a problem for any decent load balancer,
so let it proxy the packets to and from your radiator servers.

--
Best regards, Alex


Am Dienstag, den 25.05.2010, 09:01 +0200 schrieb Thomas Guthmann:
> Hi Hugh,
>
> > The load balancers that I have worked with rewrite the reply to the VIP address, [..]
>
> If you are using LVS in Direct Routing mode [1], the real server
> (radiator) will reply directly and won't go through the load balancer.
> So nothing will modify the returning datagram source IP which will be
> the IP of the radiator server and not the virtual IP.
>
> So my main question is :
> Do you think it's possible to modify Radiator to reply with the
> Access-Request destination address as the source address for the reply ?
>
> Either, radiator can do that automatically because it's smart enough or
> we can force a replyAddressToUse per Handler or AuthBy (like
> LocalAddress). "Send back the reply with this IP".
>
> Does it make sense ?
>
> Cheers,
> Thomas
>
> [1] : http://www.linuxvirtualserver.org/VS-DRouting.html
>
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