How to forward the client's Basic Authentication credentials through HTTPRouter in JBoss ESB to the target proxies HTTP endpoint ?

Issue

• There is a scenario where users implemented HTTP Basic Authentication on the target Webservice which is deployed on EAP 5 container. When users make a direct request to this Webservice , the Basic Authentication works fine. There is an ESB application which is sitting in between the client and the WebService code which acts as a proxy for the end WebService . When client code sends a request to the ESB's HTTP provider so that the request could be routed by HTTPRouter action class , the user needs to provide the credentials for Basic Authentication through http-client-property properties [1] of HTTPRouter action inside jboss-esb.xml file so that the client's request which has been routed through HTTPRouter contains the authentication details for the target WebService .
• Can this process be skipped, so that the client's credentials can be directly forwarded to the target WebService without providing the same to the HTTPRouter action inside jboss-esb.xml file ?

[1] Configuring the HttpClient