How to create remote SAP j2ee web dynpro system

I have a J2EE web dynpro on another J2EE instance than the portal. I want to take advantage of logon tickets from Portal J2EE to this other system. But creating the system connection in the portal, I'm not sure what system type to select. If I choose to create an IView for J2EE Web Dynpro, it seems to assume that the app is on the portal instance.
I could just do a straight URL type IView, but then I don't think that I could make logon tickets work with that.

Thank you, that was helpful.
I followed the instructions to create a system and then web dynpro iview, putting in the relevant parameters.
Our remote webdynpro iview URL is:
http://<host>/webdynpro/dispatcher/sap.com/<namespace>/<app>?SAPtestId=83
SO, in the iview entry, i gave values:
namespace: sap.com/<namespace>
app: <app>
parameters: SAPTestId=83
When I preview it, I get a J2EE exception:
Caused by: javax.naming.NoInitialContextException: Cannot instantiate class: com.sapportals.portal.prt.registry.PortalRegistryFactory [Root exception is java.lang.ClassNotFoundException: com.sapportals.portal.prt.registry.PortalRegistryFactory
Found in negative cache

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Message was edited by:
Sathishkumar GS
Message was edited by:
Sathishkumar GS

How to create remote SAP j2ee web dynpro system

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