J2SE Adapter + Remote connection by XI PROXY

Question

Hi,
1. When you use a decentralized Adapter Engine (called also J2SE Adapter Engine), you use the following URL address in order to start the Graphical User Interface (GUI) associated to A.E: <i>http://localhost:8200/adapter.html</i>
2. You also have the possibility to use directly your own IP address instead of "localhost"... Thus you could use something like that: <i>http://999.88.77.666:8200/adapter.html</i>  (remote URL)
3. If you use another IP address than yours, then you have the possibility to have a remote connection to another AE installed on another workstation... GREAT !
BUT it's seems this tips is limited by a firewall action: I could only call "Target AE " if this tool is on the same network than mine... (<i><u>cf. point (0)</u></i> )
                              Firewall
                                 ||          
  <======= Network 1 ==========> || <======= Network 2 =======>
                                 ||
(0)  "My PC"  ---> "Target AE"  ||
                                 ||
(1)  "My PC"  ----------------->||     "Target AE" 
                                 ||         T
(2)               XI <---------------------+ 
                                 ||
                                 ||
(3)  "My PC"                    ||     "Target AE" 
         |                       ||         T
         |                       ||         |
         +-------> XI ----------------------+ 
                  PROXY ?        ||
                                 ||          
  <======= Network 1 ==========> || <======= Network 2 =======>
                                 ||
                              Firewall
>> Exactly, my problem is the following one:
- I have 2 networks separated by a firewall
- This firewall is only openned between XI and the Target AE (<i><u>cf. point (2)</u></i> )
- When I use directly my tips from "My PC" to "Target AE", I cannot reached it(according to me it's because of Firewall)... (<i><u>cf. point (1)</u></i> )
THUS I would like to use the "openned door" between XI and "Target AE", in order to a have a complete remote connection from "My PC" to "Target AE" by passing across XI... (<i><u>cf. point (3)</u></i> )
Not especially by using a scenario or a BPM, but directly by using HTTP address and / or a <b>PROXY</b> on XI. This Proxy will be used to call directly the "Target AE" by specifying an URL: <i>http://999.88.77.666:8200/adapter.html</i> 
>> Is it possible to define a PROXY on XI in order to do such a connection between "My PC" and "Target AE"?
Any help and any idea are welcome!
Regards.
Mickael

Answer 1

Hi Mickael,
Your Problem is more an Network Problem than an xi problem.
With a ABAP Proxy and a HTTP Request it maybe works when you develop something like a browser. You must send a HTTP GET Request to the Target.
Maybe you develop a J2EE application that is able to show the site in a iframe. But this i think is a redirict and will also block form your firewall.
The easyiest way is to call your admin and he open ther ports for your Plain J2SE Adapter Engine
Regards,
Robin