We have two iPrism Proxy appliances that we are trying to load balance for failover purposes. We have tried simple layer 3 balance rules. It appears that our proxy request are being passed to the iPrisms and the Proxy is connecting to the Internet properly. This is based on sho flows commands on the CSS and sho conn at the firewall (a FWSM).
What does not seem to be happening is the return from the page to the browser. My theory is the iPrism Proxy is passing the data directly back to the browser and bypassing the CSS. This of course results in the packet being dropped as the source IP is wrong.
The pertainent parts of the config are below (of course, they are active when we try). Anyone have any suggestions?
All the iPrisms in load balancing mode should be configured with the same access policy. We recommend you configure them in master/slave configuration mode so that configuration changes on the master are automatically replicated to slave iPrisms. It is important that all the iPrisms have the same configuration. Otherwise, users will experience inconsistent Internet access, depending on which iPrism their traffic is sent to.
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