HTTP redirect

I think you need to get the actual value of the Referer header and replace not equal (ne) with eq (equal). Also, HTTP::path would be more accurate if you want to check the path and object in the URI.

 
 when HTTP_REQUEST { 
    if { ([string tolower [HTTP::path]] eq "/abc/private/xyz.do") and ([HTTP::header value Referer] eq "") } { 
       HTTP::redirect "https://test.com/groupabc/aarp.jsp" 
    } else { 
       pool test.com 
    } 
 }  
 

Aaron