Iview url (folder km) for external portal

Good morning,

I have a iview that acess a external km portal. The url is:

http://temis.telyco.es:50000/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/documents/telyco

with de parameter: UserId=<%userid%>

- temis.telyco.es is the km portal and Telyco is a km folder.

The both portal are ume.admin.auto_password=TRUE

When I click the iview appeard the Authentication popup.

Thanks,

Mercedes