rmi port and firewall problems-- inside firewall is OK send/receive

I am having difficulty connecting to jms server from OUTSIDE of
firewall.
I have 2 computers behind a firewall, 192.168.0.2  acting as receiver
and has jms server.
192.168.0.3  acts sender, for test. (Yes, I double checked these IP
numbers-- they are correct)
Note that these IPs are not public to the internet at large, nor should
they be.

Netgear firewall, 192.168.0.1,   maps: incoming request on at
216.195.1.39  on port 1099  to 192.168.0.2
216.195.1.39  is a public ip (mine), and web server works just fine, to
verify ip is valid.
The mapping mechanism works just fine, because a web server (/= jms)
runs on 192.168.0.2, works
as expected. The web server host is listening on 192.168.0.2:8080.


openjms.xml  file
rmi configuration   192.168.0.3        port 1099

From command line, jms server starts up properly.
Invoke and receiver program which employs the code:

 Hashtable env = new Hashtable();
            env.put(Context.INITIAL_CONTEXT_FACTORY,
            org.exolab.jms.jndi.InitialContextFactory.class.getName() 
);
            env.put(Context.PROVIDER_URL, "rmi://192.168.0.2:1099");
           

Invoke a sender program, outside of firewall (some computer other than
the 2 behind my firewall)  which employs the code:

 Hashtable env = new Hashtable();
            env.put(Context.INITIAL_CONTEXT_FACTORY,
            org.exolab.jms.jndi.InitialContextFactory.class.getName() 
);
            env.put(Context.PROVIDER_URL, "rmi://216.195.1.39:1099");
           
connection refused from rmi host


But note that, when sender program is invoked on 192.168.0.2  (within
the firewall), receiver responds to messages from the sender-- as
expected.
Also note, that when firewall mapping is disabled, then receiver does
not respond to sender-- as
expected.
And clearly when the jms server is down, then the receiver program gives
and exception-- as
expected.

So it is a firewall issue of some sort. Any help would be appreciated.
Mr. Mathews had a similar 
problem. Thanks.



Sincerely, 

Multisegment, Inc. 
C/O Luke P. Immes, President 
20 Williamsburg Court, suite 14 
Shrewsbury, MA  01545 

http://www.multisegment.com
[email protected]

508 579 2683 (cell) 
508 845 5960 (voice)