We are using the SAPJCo classes to connect from an independent Java application in the internal network to WAS6.20 residing in the DMZ.
Ports 32XX & 33XX are open where XX is the WAS System number.
I still encounter
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed.
A point ot be noted is that the same Java application works when I call a R/3 System from the internal network.
Any tips?
Thnx
Meesum