Transmission of principals between two servers.

[tang]

I have two ejb deployed on two jboss servers. When an ejb make a call to the ejb on the other server, I have to authenticate again, using a custom LoginModule. In this LoginModule I would like to use the principals created on the first server. Where could I find them? Are they transmitted or can't I find them back?
My principals contain informations about the first authentication, that's why I don't want to create some others. I looked in the SecurityAssociation but it seems to be empty, maybe I have to configure something for the principals to be sent with the ejb call?

Thanks in advance

[tang]

I can't find any answers, do somebody know what is exactly transmitted when a server call another? username and password are transmitted since they used to authenticate on the second sever, but how? in the Callbackhandler? And is there anything else that is transmitted?

[juha]

Look at the client proxy interceptors,org.jboss.ejb.proxy package and you'll find what goes inside the invocation payload.