Call iview passing user and password parameter

Hi.

I'm trying to call an iview (webdynpro iview) from an external system. I want to pass portal user/pass in this url to log on portal automatically.

I'm trying to use anonymous logon but I have some problems with it.

Is possible to pass these parameters on portal iview url?

How can I invoke an iview from an external system (no SSO implemented)?

Thanks a lot!

Best regards, Iván.