Looping re-directs when using load balancer

Topics: User Forum
May 23, 2012 at 3:55 PM

Hi,

I've checked the documentation and discussion forum but can't find anything that describes the problem we're facing. We have IIRF installed and working ok on a single server in our test environment. From there we have moved the installation to our production environment which consists of 4 IIS7 servers which are load balanced by a Cisco CSS which is where we encounter problems with re-direct looping.

We're using IIRF to issue redirects to an archive website when the HTML file does not exist on the main production site. If the file also does not exist on the archive website it redirects back to the production website which we redirect to our 404 page.

On an individual server basis (i.e. by-passing the load-balanced VIP address and use the real IP address of the server) all results are as expected. However, when we use the VIP address then we get redirect loops if the file does not exist on the production site or doesn't exist on the production site and doesn't exist on the archive site. It works fine if the page does not exist on the production site but does exist on the archive site.

As noted earlier, all works fine when we do not load balance.

Has anyone got any ideas on what it might be or where to start looking?

Thanks,

Matt