F5 APM with proxy chaining

Dear all,

I'm trying to implement proxy chaining on the APM infrastructure, for that I used this following documentation: https://techdocs.f5.com/kb/en-us/products/big-ip_apm/manuals/product/apm-secure-web-gateway-13-0-0/8.html

My infrastructure diagram:

External PC==SSL==>F5(gate)===proxychainning===>LAN PROXY==Proxychaining==>DMZ Proxy==>LAN 2==>Target

I use the Per Request Policy with " Select Proxy " configured on transparent mode. In the log, the flow use this criteria but I do not see the proxy connection being established and it doesn't work.

I tried to add a HTTP Proxy Connect Profile with the state disable but with this option, the Edge client no longer works.

Error message:

tmm1[10056]: 011f0007:3: http1x_process_state_unestablished - Invalid action:0x2043010 serverside (127.1.1.2:3701 -> 44.63.27.10:59389) clientside (X.X.X.X:59389 -> Y.Y.Y.Y:443) (Server side: vip=/Common/VIP_vs profile=http_proxy_connect addr=127.1.1.2 port=3701 rtdom_id=0 server_ip=127.1.1.2)

If someone has already implemented this case, I am interested in your experience or more documentation.

Thank you in advance