Websphere Network Configuration Problem

[Dhanushka Manjula <dhanuxp@xxxxxxxxx>]

Hi all,

I am a novice for Websphere stuff. I ran into a strange problem & hope someone can enlighten me. 
I have setup Websphere On i5 & developed small Jsp/Servlet Application & deployed it on Application Server. Applicaion server profile is running on port 9526. 
The 400Box has two network interfaces. 1st One is 192.X.X.X for LAN access & 2nd One is 172.X.X.X is connect to the DMZ zone. 
> From both sides (from LAN) can be accessed above application as follows,

Http://ServerIP:9526/app/index.jsp?para1=XYZ

Then I have mapped Real IP (203.X.X.X) to 400Box (172.X.X.X). All ports are enabled for temporally. Now I can ping 203.X.X.X from Internet. 

The problem is I canât access above application as follows

Http://203.X.X.X:9526/app/index.jsp?para1=XYZ

I think, I either donât understand the concept or have something very wrong in my configuration.
if anyone has suggestions or ideas on how to do this or better ways to accomplish this, I would certainly appreciate it. 

Thanks
dhanuxp