SSO to CRM URL

Hi,

I received one CRM url from Business ppl.They are asking me to add it as url iview and do the sso.

as first step I have created http system and next I have created one url iview, which is connecting to the http system. When I am trying to preview the url iView it is asking for SAP User ID/Password. Can anybody tell me how to acheive sso in this scenario.

How can I do SSO to the http system? Is it possible?

Thanks

KK