Re: [load balancing] rport not working with DSR

From: Greg Hartung <ghartung [izzat] photobucket.com>
Date: Tue May 01 2007 - 10:17:33 EDT

Of course. Painfully obvious once you explain it. Thanks!!

On 5/1/07 5:52 AM, "Nicolas BERTHIER" <nicolas.berthier@silicomp.fr> wrote:

> Hi all,
>
> I already have same problem. It is not an Alteon problem or
> limitation : you can not use PAT with DSR at all. In Greg's
> configuration, client speak with VIP listening on port 80. If you
> want to change rport from 80 to 81, I assume your web server listen
> on port 81. But if web server listen on port 81, it responds to
> client with source port 81. Client speaks with port 80 and must
> receive response from port 80. So in DSR configuration (and with all
> load-balancers) you can not change destination port because server
> responds directly to client and VIP and server must accept
> connections on the same port.
>
> Hope this will help.
>
> Regards,
>
> Nicolas
>
> Le 1 mai 07 à 09:50, Malcolm a écrit :
>
>> Greg,
>>
>> I haven't used an Alteon before but it is my understanding that DSR
>> just
>> changes the destination MAC address of the packet and therefore can't
>> change the port.
>>
>>
>> Greg Hartung wrote:
>>> I just tried 10.0.33.4. Same result. Nonat seems to turn off PAT
>>> as well.
>>> :(
>>>
>>>
>>> On 4/30/07 5:07 PM, "Greg Hartung" <ghartung@photobucket.com> wrote:
>>>
>>>
>>>> As soon as I turn on nonat for a virtual to use DSR, port
>>>> redirection via
>>>> rport stops working.
>>>>
>>>>
>>
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>
>
>
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Received on Tue May 1 10:18:53 2007

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