first let me describe my environment and then my problem. I have 2 Frontend Server with Apache and Squid Proxy installed on it. Then I got 4 Hybris Server which uses first Squid Proxy.
Now that I installed two Squid Server I want to get more high availability. So I implemented a Loadbalancer which balances two Squid Server and allows access from the 4 Hybris Server.
If I try telnet LoadbalancerIP 3128 then I get answer. also if I try http_proxy to one of the Squid Server directly.
But if I use http_proxy on the loadbalancer IP then I get 403.
It sounds like that the Loadbalancer IP is not allowed to access, so I added it into my acl and allowed it in the Configuration but the results are the same.
All I find at google are loadbalanced Squids but not two Squids behind a Loadbalancer.
Greeting Fide
The solution of my Problem is so simple that it hurts. The important fact to know that a F5 uses more than one IP is the key. I looked for all the IPs and added them as ACL into the squid and voila it worked.
Greeting Fide