CX_FQDN runtime error in WEBDYNPRO

Question

Hello Gurus, I have a problem with a WebDynpro. The issue is as follows
I set the parameters in RZ10:
SAPLOCALHOST = sapexprod
SAPLOCALHOSTFULL = sapexprod.grupolarepublica.com.pe
icm / host_name_full = sapexprod.grupolarepublica.com.pe
When I try to access from within the network, asks me username / password and enter Okei
URL: http://sapexprod.grupolarepublica.com.pe:8001/sap/bc/webdynpro/sap/zwdxx_prueba1
But when I try to log off the network, asks me username / password but I get the dump:
The URL: http://200.37.36.37:8001/sap/bc/webdynpro/sap/zwdxx_prueba1
The URL http://200.37.36.37:8001/sap/bc/webdynpro/sap/zwdxx_prueba1 call has been canceled due to an error.
Note
The system has processed the following text error PRO: Die URL enthält keine vollständig Domainangabe (200.37.36.37 200.37.36.37 statt. ).
The error occurred in the application server sapexprod_PRO_00 and the work process 0.
The class of cancellation was: RABAX_STATE
The ABAP call hierarchy was:
Method: CHECK of program CX_FQDN ======================= CP
Method: STARTUP_CHECKS of program CL_WDR_UCF ==================== CP
Method: CONSTRUCTOR of program CL_WDR_UCF ==================== CP
Method: CREATE of program CL_WDR_UCF ==================== CP
Method: HANDLE_REQUEST of program CL_WDR_CLIENT_ABSTRACT_HTTP === CP
Method: IF_HTTP_EXTENSION ~ HANDLE_REQUEST of program CL_WDR_MAIN_TASK ============== CP
Method: EXECUTE_REQUEST_FROM_MEMORY of program CL_HTTP_SERVER ================ CP
Function: HTTP_DISPATCH_REQUEST of program SAPLHTTP_RUNTIME
Module:% HTTPSTART of program SAPMHTTP
Please I really need your help Gurus, Thank you.
GC

Answer 1

I had the same problem..
I set a external debugger in the method "CHECK" of CX_FQDN where it hits the dump.
Turns out SAP does not allow IP address (not Sure why..may be there is a note for this..I'll post if I find anything)
Check out the logic..
METHOD check.
  DATA: lv_host    TYPE string,
        lv_port    TYPE string.  "#EC NEEDED
  lv_host = request->get_header_field( name = 'host' ).
  IF lv_host NA '.' OR lv_host CO '0123456789.:'.
    IF NOT lv_host CS 'localhost'.
      SPLIT lv_host AT ':' INTO lv_host lv_port.
      RAISE EXCEPTION TYPE cx_fqdn
        EXPORTING host   = lv_host
                  domain = '.<domain>.<ext>'. "#EC NOTEXT recommend security group
    ENDIF.
  ENDIF.
ENDMETHOD.
Sorry..Just found a note "1403326".. SAP makes it official that we cannot use IP.
Here is what the note says.
Symptom
You start a Web Dynpro ABAP application and immediately receive an error message due to the exception: CX_FQDN.
Other terms
Fully qualified domain name
Reason and Prerequisites
You can start Web Dynpro ABAP applications only if
the name of the server with a fully qualified domain name (FQDN) was specified in the URL. The specification of an IP address or a host name without a domain is not possible.
The requirements of a fully qualified domain name are described in Note 654982.
Solution
Start Web Dynpro ABAP applications only with a suitable server name.
Edited by: Sudharshan on Aug 1, 2011 3:39 AM