Port Forwarding for SAP Integration Kit

Question

I've got a network where the BO server is behind a NAT. I can access the BW server from the BO server but when retrieving data I'm getting a C-PIC error in SAP log with code TIMEOUT. The first explanation I can find is that the BW server is trying to initiate a response but can't due to the NAT.
Are there certain ports that I can configure for forwarding in the NAT, in order to enable two-way communication? The only port I know of is the Tomcat port which I use to access InfoView and CMC.
Thanks

Answer 1

I'm running XI 3.0 and I can access the BW server via SAP Logon from the BO Server. The error I'm getting is:
*Trace file opened at 20080930 190555 GMT Daylight Time, SAP-REL 700,0,159 RFC-VER U 3 981833 MT-SL
======> CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 thRc=456
Excesso de tempo na estrutura de conexão (existe parceiro ?)
ABAP Programm: CL_RSR_MDX_COMMAND============CP (Transaction: )
Called function module: RRTS_PARSE_MDX
User: JOASOUSA (Client: 070)
Destination: MDX PARSER (handle: 2, 01645795, {531A8FDD-869B-F1D5-B431-00145E6A52A6})
SERVER> RFC Server Session (handle: 1, 01629716, {521A8FDD-B93F-F154-AFA1-000C294D8A52})
SERVER> Caller host:
SERVER> Caller transaction code:  (Caller Program: WebIRichClient)
SERVER> Called function module: BAPI_MDDATASET_SELECT_DATA
Error RFCIO_ERROR_SYSERROR in abrfcpic.c : 3295
CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 thRc=456
Excesso de tempo na estrutura de conexão (existe parceiro ?)
Error RFCIO_ERROR_MESSAGE in abrfcio.c : 1833
Where "Excesso de tempo na estrutura de conexão (existe parceiro ?)" is translated to "Exceeded time in connection (partner exists?). It seems like the BW can't reach BO. I'm going to read the installation manual to check NAT config.
EDIT: The problem seems to be with the MDX Parser RFC destination after all. Analysing that problem now.
Edited by: João Sousa on Sep 30, 2008 8:23 PM