Orcale Application Server with F5 LTM

The first thing I would check out is to make sure the BIG-IP itself can get out and to the internet. From the BIG-IP command line, can you ping your firewall, router, et al? After that, I would then try to ping stuff by name out past your firewall and router (google.com for instance).

 

 

I have to admit that I was a little confused by your initial post -- not your diagram, but your explanation of addressing and where & how you were or weren't translating. Maybe another diagram, but just in text that included all your network addressing.

 

 

In the end, your BIG-IP will have to have self-IP addresses on any network segments it is attached to, regardless if it's real or a VLAN. Any hosts that needs to get traffic back through the BIG-IP will either have to have the BIG-IP as it's default gateway, or the initial request traffic will need to have a SNAT applied to it. Otherwise, traffic coming out of your Application Servers will head out a different direction because of asynchronous routing.