Re: SPAM-LOW: Re: Radware AppDirector Global Triangulation

TCP State Bypass might work for you on the ASA.

Rich

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of mwachner
Sent: Monday, August 24, 2009 7:15 PM
To: [email protected]
Subject: SPAM-LOW: Re: [load balancing] Radware AppDirector Global Triangulation


Thanks for your advice.  We've isolated the problem further and see that the
TCP connections are being blocked by our Cisco ASA firewall because there is
no established connection in the firewall (it was established with the
firewall in the other data center).  I'm looking for a way to disable this
feature in the Cisco ASA but so far I can't find one.

Mike


Juan Canete wrote:
> 
> Hi Mike,
> 
> According to the description of the problem it seems the problem is in the
> local farm at the remote AppDirector. Did you get an sniffer at the
> AppDirector itself in order to see if the request is going outside to the
> server? You can do this using "Diagnostics tools" a take a capture of this
> traffic. It will help a lot to understand the problem.
> 
> Thanks,
> Juan Carlos Caete
> EMEA Technical Consultant Radware-Alteon
> 
> 
> -----Mensaje original-----
> De: [email protected] [mailto:[email protected]] En nombre de
> mwachner
> Enviado el: sbado, 22 de agosto de 2009 18:40
> Para: [email protected]
> Asunto: [load balancing] Radware AppDirector Global Triangulation
> 
> 
> Does anyone have any experience configuring Global Triangulation in a
> Radware
> AppDirector (or WSD)?   We are trying to use it as a fallback redirection
> method (DNS is primary).  We wouldn't mind using Http Proxy redirection
> (which we did get working), but it doesn't seem to support it as a
> fallback
> method.  Also, we can't use HTTP redirection because we can't allow the
> URL
> to change.  So it seems Global Triangulation is the only redirection
> method
> left for HTTP traffic...
> 
> Our configuration is straightforward.  There are 2 Global AppDirectors
> (1.06.09) - 1 in CA and 1 in NY.  After configuring both Radwares
> according
> to the documentation for Global Triangulation (not using NAT)we are able
> to
> see the request go from the local AppDirector to the remote AppDirector
> (hits the Triangulation VIP).  The Remote AppDirector also shows it is
> sending the request to a server on the local farm, however, the page hit
> never makes it to the local web server and the client connection
> eventually
> times out.  I've setup captures in our firewalls and on the local web
> server
> to verify this. 
> 
> It's also interesting to note that if you try and hit the Triangulation
> VIP
> directly it also doesn't work - the request never gets sent to the web
> server.
> 
> Thanks in advance,
> Mike
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