Idocs to XML HTTP port are not received When the webserver is on Public IP.

Dear Friends,

I am sending Idocs to XML HTTP port and configured a rfc destination of type HTTP, to the webserver. The webserver is getting the XML converted IDOC when the sap and webserver were in local network.

But when the rfc destination (IP address ) for the webserver is changed to a public IP .The Idocs are sent with status 03 but the IDOC_XML is not received in the java webserver.

Please help me in solving this problem.

thanks,

jeevan.