Re: Client IP behind Load Balancer

From: Cédric Dardenne (cedric.nospam_dardenne_at_accenture.com)
Date: 11/15/04 

Date: Mon, 15 Nov 2004 09:04:01 +0100

Hi Seth,

Thanks for your answer.
Unfortunately, I don't have access to F5 configuration or F5 itself... this
is our hoster's one (and I have to admit I don't know a lot about it...).

If requests are done through the public IP, then they go through the load
balancer, and I only see the virtual private IP in the logs. If I make a
request on the internal network directly to the real server's IP, then in
the logs I see my real client IP, as I don't pass through the load
balancer...

Would it be possible for you to describe me your configuration, or to send
me your config file? This would allow me to advise my hoster...

I have been trying to read F5 documentation (:-S...), and saw the nPath
routing configuration. Is this the one you are using? My hoster said that
this would not be allowed by their firewall as the anwser doesn't come from
the same host it was sent to... (is it true?)

Thanks for your advises,

Cedric 

-- 
Programming today is a race between software engineers
striving to build bigger and better idiot-proof programs,
and the Universe trying to produce bigger and better idiots.
So far, the Universe is winning.
-- Rich Cook
srock wrote:
> Hi,
>
> I have F5's in place and the client IP's are preserved in the logs as
> expected. I have a few questions:
>
> 1. Are ALL of the requests in your logs coming from the bigip?
> 2. Is the default gateway on your web servers set to the big IP?
> 3. Can you post the contents of your bigip.conf file?
> 4. Can you post the results of: b global show
>
> thanks,
>
> Seth
>
>
>
> "Cédric Dardenne" <cedric.nospam_dardenne@accenture.com> wrote in message
> news:%23STJGDZyEHA.2212@TK2MSFTNGP15.phx.gbl...
>> Hi all,
>>
>> We have a website running under II5 (W2k SP4). To analyze logs, we use
>> WebTrends Pro. However our servers are behind a physical load balancer
>> (F5). Thus, in IIS logs, we now only see the load balancer's virtual IP
>> address instead of the real client IP...
>>
>> I guess I might not be the first facing this issue... Would you have any
>> solution?
>>
>> Thanks a lot,
>>
>> Cedric
>>
>> --
>> Programming today is a race between software engineers
>> striving to build bigger and better idiot-proof programs,
>> and the Universe trying to produce bigger and better idiots.
>> So far, the Universe is winning.
>> -- Rich Cook

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